The Number 1 Resource for Vocational Truck Fleets

Fuel Management

Pros and Cons of Gas Vs. Diesel in Class 3-4 Trucks

Choosing between gasoline- or diesel-powered trucks requires striking the right balance between performance, fuel efficiency, and budget.

November 2011, Work Truck - Feature

by Staff

Gasoline or diesel: Which engine type works best for Class 3-4 truck applications?

This is an age-old question without a clear-cut winner. Each offers advantages and limitations. The key is determining exactly how the truck will be used and then selecting the engine type that strikes the right balance between performance, fuel efficiency, and budget.

What factors should fleet managers consider when deciding between gasoline and diesel engines in Class 3-4 (10,001- to 16,000-lb. gross vehicle weight rating) trucks? Here are nine points to serve as a guide:

1. Fuel Efficiency

Advantage: Diesel
According to the U.S. Department of Energy, diesel engines offer 30- to 35-percent greater fuel economy than comparable gasoline engines.
"By design, diesel engines operate with a combustion process that's leaner, burning less fuel than a conventional spark ignition (gasoline) engine," explained Roger Gault, technical director, Truck & Engine Manufacturers Association (EMA), a trade association representing worldwide manufacturers of internal combustion engines used in applications such as trucks and buses; farm and construction equipment; locomotives; marine vessels; and lawn, garden, and utility equipment.

Diesel fuel also has higher energy density than gasoline, which means less fuel is required to generate the same power as gas, improving overall fuel economy.

2. Acquisition Cost

Advantage: Gasoline
The diesel engine's fuel efficiency advantage, however, must also be weighed with its bigger price tag. In Class 3-4 trucks, the incremental cost for the diesel engine is between $5,000 to $8,000 or more than its gasoline counterparts. The diesel/gasoline price gap has nearly doubled over the last seven years due to the exhaust after-treatment technologies developed to comply with Environmental Protection Agency (EPA) regulations for diesel emissions (in 2004, 2007, and 2010).

Will the truck be driven a sufficient number of miles per year to recoup the higher up-front cost for the diesel engine with fuel economy savings? A general rule of thumb for a mileage break point is 30,000 annual miles. Above that number, diesel usually makes financial sense. At or below 30,000 miles, gasoline is a viable lower-cost option. Run a fuel-cost/comparison analysis specific to your truck's application to calculate the payback period to assess whether the diesel engine will generate cost savings, within an acceptable timeframe.

3. Fuel Cost Per Gallon

Advantage: Gasoline
"Over the past ten years, diesel has averaged nearly 14 cents more per gallon than unleaded gasoline," said Steve Jansen, truck services account executive, Donlen, a Northbrook, Ill.-based fleet leasing and management company. "At its peak in December of 2008, diesel cost averaged more than 76 cents per gallon more than gasoline. Historically, diesel has been more expensive per gallon as a result of higher taxes and environmental restrictions."

Another benefit of gasoline is availability, according to Michael Macik, a strategic consulting analyst for ARI. "There are certain areas where stations do not necessarily have a diesel pump," he noted. "This could hamper drivers' productivity if they are spending too much time looking for places to fill up."

4. Maintenance Cost

Advantage: Gasoline
"Over time, regular maintenance on a diesel generally will cost more than a gasoline engine," Jansen said. "The diesel engine has components that are either not found on a gasoline engine or require servicing more often. The oil reservoir is larger in a diesel engine and the water separator and fuel filters will require replacement more often. Gasoline engines have longer service intervals for engine oil, spark plugs, and engine coolant."

Gault of EMA agreed: "I think there tends to be greater maintenance with the diesel. Oil capacities tend to be higher. So, if the oil change interval is the same and you have 50 percent more oil in the diesel, then that tends to be more expensive than the gasoline. Also, historically, there has been more maintenance with diesel fuel systems - such as changing filters more frequently."

5. Engine Longevity

Advantage: Diesel
As a frame of reference, according to Brian Tabel, retail marketing manager for Isuzu Commercial Truck of America, the design life of the gasoline engine for Isuzu's NPR cab-forward is 200,000; the diesel engine is B-10 rated for 310,000 miles.

Why are diesel engines expected to last substantially longer than comparable gasoline engines?

"Diesel engines have high-compression ratios and high cylinder pressure and, as a result, require sturdier engine parts - for example, block and cylinder heads, valves, crankshaft, and pistons," said Jansen of Donlen. "This is necessary to dissipate the higher engine temperatures and the higher compression ratios attained in a diesel engine. Also, a diesel engine's exhaust system will outlast a gas engine exhaust system because diesel fuel exhaust is not as corrosive as gasoline engine exhaust."

Gault of EMA pointed to the diesel engine's operating efficiency as another key to its longevity. "The diesel achieves higher torque at much lower speed, so it's operating at much lower rpm [revolutions per minute], a greater percentage of the time than gasoline engines. And the lower engine speed translates into fewer times a piston has to move up and down, the fewer times a valve must close, and so forth. All these things happen lots of times, but not quite as often as it does in a gasoline engine - and that impacts overall life."

6. Trailering

Advantage: Diesel
"The diesel engine is a more suitable choice if towing capacity is critical to your operation," Jansen of Donlen advised. "The torque advantage of diesel engines is better suited for pulling heavy loads up steep grades. The relatively high-compression ratio necessary to ignite the diesel fuel (17:1 diesel versus 9:1 gasoline), allows the diesel engine to generate all its torque and power at a lower rpm."

Macik of ARI agrees. "It's all about using the right tool for the job," he said.  "While appropriate for certain demands, using a gasoline truck for heavy towing in most cases will result in significantly reduced engine life and increased gasoline consumption."

Do the truck's towing requirements necessitate a diesel engine? Or will a gasoline engine work fine? Consult the manufacturer's rep or fleet advisor for max trailer ratings of the vehicle and engine type under consideration.

7. Specialty Body/Equipment Options

Advantage: Depends on upfit requirements
Are there body or equipment considerations with gasoline versus diesel?

"Yes, normally with diesel engines, depending on manufacturer, the DEF [diesel exhaust fluid] tank or exhaust pipe may need to be relocated to accommodate equipment," Jansen answered. "In regards to PTO provision availability, normally a PTO prep option is available with diesel engines only. However in recent years, depending on the manufacturer, PTO provisions are being offered on gasoline engines as well."

If your truck equipment requires a PTO, contact the truck manufacturer's rep to confirm the gas truck availability. This will save time and headaches up front, should the gas engine prove incompatible.

8. Disposition/Resale

Advantage: Diesel
Which is better for resale values? "The market perceives that a diesel-powered truck with 150,000 miles on it has much more remaining useful life than a gasoline-powered truck with comparable miles. And therefore, the diesel commands a higher price," Jansen of Donlen said.

Macik agrees and added that "there's such a variety of companies and industries that legitimately need diesel trucks for towing and increased payload. Many of these companies are smaller, and, consequently, have a smaller fleet budget - they are going to be looking for used vehicles. This means an opportunity to attract a larger buyer base, increased demand, and therefore command higer premiums."

9. Environmental Impact

Advantage: Comparable
What's the difference between gas and diesel in terms of environmental impact? Which produces fewer emissions? "Historically, diesels struggled with that," said Gault of EMA. "They had higher emissions in terms of particulates and NOx (nitrogen oxide). With the latest round of regulations, the differences between gas and diesel are pretty much non-existent. If you're buying the new product that meets the latest emissions standard, I'm not sure there is a differentiating level [in emissions] at all."

Tabel of Isuzu agreed: "Both [gas and diesel emissions] are about the same since the 2010 EPA diesel emissions requirements have been implemented."

Jansen of Donlen pointed to diesel's fuel economy advantage as the equalizer with emissions. "Diesel as a vehicle fuel emits more greenhouse gas emissions when consumed than unleaded gasoline, but its higher energy content per gallon results in higher fuel efficiency," he said. "Therefore, in similarly equipped vehicles, a diesel vehicle can go further on a single gallon of fuel than a similar truck on gasoline. As a result, diesel's greenhouse gas emissions are comparable to those of a gasoline engine due its increased fuel economy."


  1. 1. [ July 15, 2013 @ 05:16AM ]

    To change oil in diesel engine cost me around $100 for the same truck gas engine oil change is around $20. That's alone pay off the gas saving. Go gas...

  2. 2. John Milhon [ August 02, 2013 @ 02:39PM ]

    One of the largest considerations that I have regarding the decision on a gas engine versus a diesel engine is will the truck normally be required to pull excessive weights and will it normally be able to achieve a speed above 45mph for at least 40 minutes at least twice a week to allow the vehicle to go through the regeneration process. If I have a service vehicle that tends to idles a lot and will not obtain the 45mph needed for regeneration, I strongly recomend a gas powered truck to avoid interuptions in service while the vehicle is either in de-rate or running through a manually commanded regeneration. The extra time taken to add the DEF fluid in Fleet vehicles, train the operators, and the multiple regeneration problemsthat require the vehicle to be sent to the dealer for warranty repairs are not worth it for a city only service vehicle.

  3. 3. TJ [ August 19, 2013 @ 07:49AM ]

    Running a farm finds gasoline to be less of a cost when it comes to repairs since we can do all of them in-house!

  4. 4. Kyle d [ May 04, 2014 @ 04:14PM ]

    Diesel is what u really need if your moving a lot n loaded. 2 cords of red oak is almost 2 ton. 3 a day 6 days a week. None stop. No problems and when some one rides my ass hoping wood will fall off the truck I drop it in 4th n just fly away. That was 2 n a half years ago. I just started the truck first time today in almost 3 years. Kept it in 4th just flying around the block laughing like a school girl. You will never go wrong with a diesel. Mine is a 97 7.3 turbo f 350 just shy of 400,000 miles. Got it 3 grand when I was 19 in 2007. When it started out with 250,000. I'm about to re do my whole rear end only because the guy I bought it from used to fill it with salt for his farm. He had 5 of the same trucks. IV had guys stop by try to buy it n I tell them stupid high number's. Once u find the right diesel truck life is much easier. Just wanted to tell the world I love my 7.3 turbo!

  5. 5. jr23 [ October 13, 2014 @ 02:04PM ]

    for kyle you have an older truck no def,no exhaust regen and a lot of less controls plus it sounds like a manual trans. the current models have lots of controls. i was surprised to see UPS going back to gas. but the regen might be a problem with door to door del and not much road time.
    heave hauling daily or long distances diesel is king lots of local stops gas .
    the thing i have noticed in the recent time trucks are weighing empty
    what they used to weigh loaded for the same carrying capacity although towing capacity grew but every company does not need towing they need cargo and economy

  6. 6. Dustin Fink [ December 02, 2014 @ 08:00AM ]

    Great information. Im a Junior in High School. I go to BCIT which is a Vocational (Trade) school. My career major is Auto/Diesel. I am ASE certified. Im doing a career major project in my english class and I used this story as one of my sources, because of the great information. Please if you have anymore information on the differences between Diesel and Gas engine email me. Thank you.

  7. 7. Zach W [ February 04, 2015 @ 09:44AM ]

    I like the information given here because I'm 17 and wanting to get myself a truck. I see that gas cost less than diesel when it comes to fixing the vehicle and the fuel. But which one will last longer for you? I want a dependable truck that I can count on and drive around town and take long trips with. Should I go Diesel or Gasoline?

  8. 8. Nick T [ March 10, 2015 @ 06:29AM ]

    Im just putting my opinion out there a diesel is a far better choice if your wanting a truck especially if your looking to lift it. First off they have better fuel efficiency than gas truck. I own a f250 its a 6.0 turbo diesel lifted on 37s and im a younger guy and i honestly would never go back to a gas truck. I drive one of the nicest lifted truck where im located and to have a 8inch lift and 37s once you straight pipe with a bigger exhaust i have a 5inch and bought a programmer and with some custom tunes im getting 15 mpg which is pretty good while running a 145hp tune with economy boosts and feels great being one of the biggest trucks on the road that will beat alot of cars and any other gas truck off the line! And if your 16 or 17 and know your getting a truck look into getting a diesel for the long term, they last longer, resale is higher, there is too many things you can do performance wise, they are faster, better mpg, sound better etc..

  9. 9. zack [ April 11, 2015 @ 07:07AM ]

    I'll just hop in my jeep srt 8, pull my 24 ft boat without the dumbass cost of a diesel n still beat diesels in a race with a boat attached. I do it all the time.
    still beat any diesel off the line and top speed with a boat on the back of my jeep haha the age of diesel is coming to an end.

  10. 10. Austin [ April 25, 2015 @ 05:48AM ]

    Zach you are so wrong that the age of diesel is coming to an end almost every car company excluding the trucks for now has a car with a Diesel engine that is pushing out just about as much as the gas with double the torque and now to the trucks fords new powerstroke 860 lbs ft of torque DURAMAX 797 lbs ft of torque Cummins 850 lbs ft of torque and all of them are going up in horsepower and torque faster than people can keep up the diesel age isn't coming to an end its just starting

  11. 11. Mike [ April 30, 2015 @ 03:39PM ]

    @Nick T, you're going to blow all of the heads off of that 6.0 if you're saying you're beating people off the line all the time with an extra 145 horses pushing, which is most likely the SCT Live TS tune if you're driving a 6.0. Especially lifted on 37s... you're going to either drop 8 grand bullet proofing that truck when all the heads blow, or you're going to drop 3 grand putting stock heads in over and over and over... 6.0's are a piece of work.

  12. 12. Pat shanahan [ May 19, 2015 @ 04:49PM ]

    we can't hardly give trucks away that have the 6.0 L Diesel. You'll need the fuel
    savings to keep repairing the engine. It's a poor choose.

  13. 13. Brandon [ June 05, 2015 @ 03:42AM ]

    The new diesel road tractors are pure junk from emissions. I have big business owners come to me with new trucks and nothing good to say about them. break down more than run. I hear this from everyone that drives them too. Its a sad thing but they are choking them to death and the fuel is garbage. you need to put additives in it just so you injector pump doesnt go bad. a gallon of treatment in 50-60 bucks. diesels are and expensive un reliable option. You must really be working the vehicles making money with them for it to be a good choice. Please make your statement with your wallet buy a gas engine if you can. every diesel is bought the manufacturer is getting over on a another customer. Just remember some applications offer no choice. if you can make the choice gas is a smarter way to go. if you tow heavy get a diesel it is meant for heavy heavy weight. if your under 12k towing you can use a new gasoline powered truck. if you tow more than once a week for over a hundred miles per run than diesel is a better choice.

  14. 14. David [ June 08, 2015 @ 02:37PM ]

    I just purchased a 24 ft boat, that when loaded is around 8,000 lb. I was debating the Ford 250 Diesel VS Toyota Tundra 5.7 that apparently can haul 10,500 lbs. I do 2 long trips annually pulling the boat to Arizona from San Diego mostly freeway and essentially flat. Im thinking the Tundra will do the job without the additional costs and hassles associated with diesel.Not to mention the truck is about 4K cheaper. I am missing something here. Anybody got experience with the Tundar pulling similiar weights?

  15. 15. Len Sinclair [ June 09, 2015 @ 01:54PM ]

    I am thinking of replacing my gas 455 cubic inch with 454 hp. With a diesel. What hp diesel do I install to match or rather surpass the gasoline 455?


  16. 16. Chad [ July 02, 2015 @ 01:01PM ]

    David don't be that guy that buys a Toyota. If you want something cheaper get a f 150 Eco boost. With the right f 150 it can easily haul that.

  17. 17. Bubba [ July 07, 2015 @ 09:12AM ]

    I got a 2012 dodge ram 1500 lone star package with 76,000 miles..should i trade it for a2011 shortbed laramie f-250 with 150,000 miles

  18. 18. Chad [ July 08, 2015 @ 10:14AM ]


  19. 19. Drew [ July 18, 2015 @ 07:32PM ]

    David- a base model Tundra dbl cab pulled the Space Shuttle Endeavor.. It'll handle your boat. 😀

  20. 20. Chad [ July 29, 2015 @ 12:08PM ]

    Any truck can pull a space shuttle like that.

  21. 21. Alex [ August 02, 2015 @ 07:09PM ]

    I am looking for a box truck to move large amounts of sound and lighting equipment. Does anyone have a recommendation gas or diesel? My only concern with a diesel is starting it in the cold?

  22. 22. Jay [ August 18, 2015 @ 09:49AM ]

    DO NOT buy a ecoboost F-150. They are complete crap. Get a V8 and save yourself a ton of headache. You'd be better off with a Tundra then one of those POS's. But a standard V8 model will do fine.

  23. 23. Chad [ September 20, 2015 @ 05:07PM ]

    I have a Eco boost with all the towing options and so far it's has more then enough power. The only bad part is the gas mileage.

  24. 24. Tonya [ September 22, 2015 @ 11:04AM ]

    I am looking at buying a 2009 Ford F250 diesel. It has 107K miles. I have never owned a diesel truck. What are pros and cons? I need to make a decision pretty quick. Ford F150 or Ford F250? I will not be towing anything. This is for my 19yr old son who hunts and all things like that. These are 4x4 trucks.

  25. 25. Chad [ September 26, 2015 @ 06:08PM ]

    im a ford guy and I'll tell you fords diesel 2008-2010 are bad motors. There are ways the could have fixed the problems but look into it. I have a 2000 7.3 with 250000 miles and I would suggest the older truck over the 08

  26. 26. Lou [ October 11, 2015 @ 10:31AM ]

    Looking to possibly buy an Isuzu cab over for courier/freight delivery.
    Averaging 100-125km per day. 75% in-town and side street driving. I'm hoping to get 450,000 km before retirement. Diesel or gas in the question.

  27. 27. Clint [ October 25, 2015 @ 09:56PM ]

    I bought a 2004 F-250 powerstroke 6.0 with 112k miles it has had the EGR delete and the bulletproof job done to it, is this a good buy, any input

  28. 28. Chad [ October 26, 2015 @ 09:39AM ]

    Just don't put chips in it. It's not worth blowing the motor for more horsepower.

  29. 29. Barry [ December 15, 2015 @ 07:17AM ]

    The 2015 Duramax can simply walk with a load while gas needs to race. Gas guzzles from accelerated type city driving while diesels don't drop the MPG needle much at all. It's totally smooth - no vibration at idle. For driving interstate at 80 mph, gas will surely guzzle, while diesel, another walk in the park; while loaded, it enjoys the pull. The thing has 765 lbs of torque; twice as much as gas. Big gas motors for 3/4 ton and higher should not be promoted over new diesel motors.

  30. 30. Jason [ December 15, 2015 @ 09:21PM ]

    Trying to decide on used late model gas or diesel 3-4 ton 4x4. Plans are to pull a camper for 4-6 about half a dozen or more times a year. Definitely will use through mountainous country. Outside of the vacations, though, truck will spend most of the time in town. Probably not meet the 30k /yr mileage threshold, but 8000 lb trailer in mountains makes me think diesel. If diesel, whats the least problematic engine between 2012-2015?

  31. 31. Michael [ December 20, 2015 @ 07:19PM ]

    Jason, the Chevy/GMC Duramax is a very durable engine that runs a lot smoother than the Dodge/Ram Cummins and while the new Ford Powerstroke 6.7 is a massive improvement over the awful 6.4 they used from 08-10 and the mediocre 6.0 from 03-07, it is far less proven than the Duramax. The Duramax has changed significantly since its inception in 2001 but every version of the Duramax has been consistently reliable.

  32. 32. WAG [ February 02, 2016 @ 05:56AM ]

    Duramax Diesel s are JUNK.

  33. 33. Stlpheonix [ February 11, 2016 @ 12:30AM ]

    Duramax diesel is a very tough built engine and ive heard the allison transmissions when paired with the duramax is a damn near bulletproof drivetrain if you take care of it

  34. 34. Ray [ February 14, 2016 @ 12:21PM ]

    I have been driving truck for 30 yrs. Just my opinion, new diesel pickups are overpowered. 400hp,800+ trq. Nuff to pull 80,000 lbs. Will pickups handle that? Not even close. The type of driving I do,gas all the way. Mostly empty. 15,000 kms a yr. Ocasionally fill the box with whatever. 2-3,000 lbs. Tow 5ton trailer 10 times a yr. chips, exhaust ,big turbos on a diesel. 900+ hp, 1500+ trq = unreliable and BOOM!! Make it work at that power for 3plus hours. What happens? I can work my v10 ford all day long with no worries. Resale? Who cares. I drive them till they're done.

  35. 35. LuWana [ March 24, 2016 @ 02:53PM ]

    I am looking for a truck for my daughter who's in college. She would like one that can pull a gooseneck, 3 horse slant load trailer. This will also be her only vehicle to get around in. What would you all recommend? Gas, diesel and what size and year? It has to be on the more inexpensive side! Thank you for your input!

  36. 36. Francisco Pedro [ May 05, 2016 @ 05:14PM ]

    Excellent article. Thanks. It helped me a lot to choose a gas powered pickup truck since I will not use it for heavy work needs and my average annual mileage is below 30,000. Also, helped clearly understand the difference between gas vs Diesel engines (price, life cycle, maintenance, etc).

  37. 37. georgemcbride [ July 01, 2016 @ 03:32AM ]

    Diesels get great mileage. They typically deliver 25 to 30 percent better fuel economy than similarly performing gasoline engines. Diesels also can deliver as much or more fuel economy than traditional gasoline-electric hybrids, depending on the models involved and whatever rapidly developing automotive technology achieves.

    Thanks for a great article:)

  38. 38. Ronnie [ July 22, 2016 @ 09:03PM ]

    When you are driving 100000 miles a yearc and pulling a load 70% of the time,I don't think a gas engine will hold up.

  39. 39. Cindy M [ September 20, 2016 @ 08:22AM ]

    I love my Ram diesel. I work in an apple orchard and It does a great job when I haul bushels and bushels of fruit. I share the opinions here of a good diesel engine over gas any day.

  40. 40. Big dick niggra [ January 02, 2017 @ 02:06PM ]

    Buying my first diesel

  41. 41. T Huckaba [ January 04, 2017 @ 11:45AM ]

    I want a truck to pull my horse trailer on the weekends and haul hay. I have a Chevy half ton now. I wouldnt use this truck to haul my trailer over any mountain ranges or on any long trips. I feel like im going to burn it up. Everybody tells me to get a 3/4 ton Diesel. Will i ruin a diesel using it for everyday driving? I live about 10 miles from work.

  42. 42. kayla [ January 08, 2017 @ 04:51PM ]

    I'm looking at buying an older f250 lariat. Someone told me the diesel for ford is trash and i should get gas. But the diesel seems to have bunch more benefits. I will be pulling a couple horses. As well as my daily driver. Any thoughts? I haven't own a truck before and would like something dependable, and something that lasts.

  43. 43. Bob C. [ February 16, 2017 @ 08:06PM ]

    I have 1977 28 ft. dodge motor home with a 440-3 motor and torqueflight
    The GVW is 14,000 lbs.
    I live in utah with lots of mountain roads.
    What is the highest compression ratio would you recommended?

  44. 44. Dalton [ February 23, 2017 @ 02:42PM ]

    Got a 21ft War Eagle duck hunting boat with a 115 mercury motor. Pulled year round. Diesel or Gas?


  45. 45. Mark [ March 16, 2017 @ 10:54AM ]

    I bought a 2016 Ram 2500 4x4 SWB with 385 hp 5.7 hemi v8 to tow a 5th wheel. My buddy bought SAME TRUCK with diesel motor. He gets 15mpg- same as me. I drive diesel for years, put up with the stench, foaming at the pump, horrendous extra cost etc. Hp is the same & no additives for gas motor & cheaper fuek. I don't miss diesels!

  46. 46. Sally [ March 29, 2017 @ 02:51PM ]

    I'm buying a 2015 RAM 2500 Big Horn long bed 4x4 Cummins Diesel to haul a goose neck three horse trailer. My go-to auto/truck guy swears by a diesel for towing and a long bed for added stability with a goose neck. A friend recently purchased a 2017 RAM gas engine and is so disappointed in the poor gas mileage. She hauls a bumper pull with one horse but so far has just driven for daily driving. Go Diesel for towing.

  47. 47. frank [ December 12, 2017 @ 06:31AM ]

    I am not sure if anyone checks this thread anymore, but I am curious why my experience differs from several on here. I own both a 2001 dodge 3500 5.9 diesel dually, and a 2006 chevy express 3500 van with a vortec 6.0L gas engine. While my van is not a truck, it is rated to tow 10k. Now, being in the military, we move often. We own a 42' toy hauler, loaded at 19k. we also have an enclosed 6x16 trailer loaded at 9k. When we move cross country my van rated at 300hp pulling the 9k trailer has a difficult keeping up with my diesel towing 19k. my truck is base model, no extras or mods. My truck also gets much better mileage than my van both in the city and while towing. so I am not sure why some are saying they get so much better performance out of their gaser compared to diesel. Maybe because mine is pre environmental controls?

  48. 48. Dan [ January 19, 2018 @ 04:20PM ]

    Hi frank. I also own both a gas and diesel. The diesel will out tow hands down and my 2005 2500 dodge cummins gets better fuel economy towing 10k pounds then my 01 dodge 2500 gets unloaded.


Comment On This Story

Comment: (Maximum 10000 characters)  
Leave this field empty:
* Please note that every comment is moderated.


Fuel Management

Bernie Kanavagh from WEX will answer your questions and challenges

View All


Fleet Tracking And Telematics

Todd Ewing from Fleetmatics will answer your questions and challenges

View All


Fleet Management And Leasing

Jack Firriolo from Merchants will answer your questions and challenges

View All


Fuel Saving Strategies Survey

View our 2008 survey to benchmark your fleet's fuel and green strategies with other fleets.

Fuel Calculator

A managed fuel program can help you save time and money and gain control over the way you fuel your vehicles. Determine your potential savings by using our fuel calculator.
Launch Fuel Calculator 

Fuel Prices

U.S. Gasoline and Diesel Fuel Prices.

Launch Fuel Prices 
Sponsored by

In the United States, the specific terminology, “Full Service Lease,” is typically used in heavy-duty truck leasing where lessor responsibilities often include garaging, washing, the provision of replacement trucks for use when the leased truck is out of service because of maintenance requirements, and occasionally, even fuel.

Read more