AMSOIL Introduces Extended Life Synthetic 15W-40 Diesel Oil for CJ-4
SUPERIOR, WI - AMSOIL has introduced a new Premium API CJ-4 Synthetic 15W-40 Diesel Oil. The new oil is an upgrade to the company's most popular 15W-40 viscosity, now re-formulated for the 2007 CJ-4 specifications without sacrificing its extended service life.
AMSOIL 15W-40
SUPERIOR, WI - AMSOIL has introduced a new Premium API CJ-4 Synthetic 15W-40 Diesel Oil. The new oil is an upgrade to the company's most popular 15W-40 viscosity, now re-formulated for the 2007 CJ-4 specifications without sacrificing its extended service life. The new emission-compliant oil is backward compatible, thus offering maximum protection in all diesel applications including those with exhaust treatment devices.
AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil is formulated using the latest, high-quality synthetic base oils and most advanced additive chemicals. Its heavy-duty detergent/dispersant additives and high 10.4 TBN control soot thickening from exhaust gas recirculation (EGR) and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits. AMSOIL Premium Diesel Oil is shear stable and provides exceptional oxidation stability to resist heat and breakdown from continuous operation and high load. In addition, the low sulfated ash formulation promotes long diesel particulate filter (DPF) life.
AMSOIL 15W-40 is engineered for a wide range of applications, allowing fleet operators to consolidate engine oil inventories in mixed fleets. By reducing downtime through both extended drain intervals and improved equipment protection, AMSOIL Synthetic 15W-40 provides real savings for fleets and owner/operators. Due to its high TBN content, AMSOIL Synthetic 15W-40 Premium Diesel Oil is recommended for extended service life in engines that are unmodified and in good operating condition. The recommended drain intervals is three times (3X) OEM recommendations, not to exceed 50,000 miles/600 hours or one year, whichever comes first. Drain intervals may be extended further with oil analysis.
AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil is recommended for diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:
API CJ-4, CI-4+, CF, SM
ACEA E7, E9
Mack EO-O Premium Plus
DDC Power Guard 93K218
Caterpillar ECF-3, ECF-2
Cummins 20081
Volvo VDS-4
MB 228.31
MTU Type I & II
MAN 3275
JASO DH-2
Global DHD-1
Renault RLD-3
AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil is available in quarts, gallons, 2.5 gallons, 30-gallon drums, 55-gallon drums and 275-gallon totes.
More Maintenance
Coltrain Onsite Fleet Care Launches SHIELD, a Purpose-Built Field Service Application
As Coltrain Onsite marks its first year of operations, having grown to more than 100 team members across 14 states, the company is launching SHIELD, its proprietary field service application designed to set a new standard for quality in mobile fleet maintenance.
Read More →
Preparing Your Fleet for Extreme Heat
Hot weather puts extra stress on commercial vehicles. In this video, Mike Hagaman of Cox Fleet shares simple maintenance steps that can help fleets avoid costly downtime.
Read More →
Fleetio Launches PartsTech Integration, Potentially Helping Fleets Save up to 15 Minutes on Each Purchase Order
Fleetio’s integration with PartsTech brings parts sourcing and ordering into a single connected Fleetio workflow, reducing administrative work and potentially saving users up to 15 minutes per purchase order.
Read More →
6 Main Causes of Hot-Weather Fleet Downtime
Summer heat can lead to costly fleet downtime. In this video, Mike Hagaman of Cox Fleet explains the six key systems fleets should inspect and maintain to help prevent roadside breakdowns.
Read More →
ASE Connects’ Back-to-School Giveaway: Schools Can Win Tools and Prizes from Snap-on
As part of a back-to-school giveaway, ASE Connects and Snap-on will provide four schools with prizes, including three $250 Snap-on gift cards and a grand prize of a Snap-on cart and tool set valued at over $11,000.
Read More →
BendPak Opens Donald R. Henthorn Industrial Complex in Alabama
BendPak has completed Phase 1 of construction of the Donald R. Henthorn Industrial Complex, which includes a new logistics and distribution center. The complex is situated on 33 acres near BendPak’s existing East Coast campus in Mobile County, Alabama.
Read More →
As Maintenance Costs Rise, Some Work Trucks and Vans Cost Thousands Less to Maintain
Maintenance costs are still climbing, but some 2026 pickups and cargo vans could save fleets thousands per vehicle. The real surprise is not just how much they cost to maintain, but how often they need to leave the road.
Read More →
Kerry Brothers Truck Repair Expands Rapidly Across Southeast Michigan with 3 Acquisitions and New Wixom Facility
Acquisitions of Kustom Truck & Trailer, Vehicle Clinic and Downriver Truck and Bus, along with a new 20,000-square-foot Wixom facility, extend Kerry Brothers’ footprint east, south, west and north across the greater Detroit region.
Read More →
Kooner Fleet Management Solutions Named Fleetio Premier Partner
Fleetio has named Kooner Fleet Management Solutions as a Premier Partner within Fleetio’s Maintenance Shop Network. As a Fleetio Premier Partner, Kooner's designation reflects its commitment to delivering reliable maintenance services and supporting fleets through high-quality service.
Read More →
Proven Ways to Reduce Work Truck Downtime
The age-old problem of downtime will always be a reality, but with new strategies at hand, fleets have more ways to keep trucks on the road longer.
Read More →