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Mobil 1 122448 Delvac Extreme Diesel Engine Oil, 15W-40, 4 Gal
Mobil 1 122448 Delvac Extreme Diesel Engine Oil, 15W-40, 4 Gal

Mobil 1 122448 Delvac Extreme Diesel Engine Oil, 15W-40, 4 Gal

Conventional Oil Type, 15W40 Oil Weight, 4 gallons Liquid Measurement

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Mobil 1 122448 Delvac Extreme Diesel Engine Oil, 15W-40, 4 Gal
Mobil 1 122448 Delvac Extreme Diesel Engine Oil, 15W-40, 4 Gal
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.


Oil Type:
Oil Weight:
ZDDP Enhanced:
API Rating:
Liquid Measurement:
4 gallons
MFG. Part #:
Sold in Quantity:
Sold as (4) 1 Gallon Jugs


Receive up to a $40 REBATE on the purchase of eligible Mobile oil products. Offer valid on purchases made before 12/31/19. See rebate form for terms and conditions.


Mobil Delvac Extreme Oils are premium synthetic blend, high-performance diesel engine oils that help extend engine life while providing long drain capability for modern diesel engines operating in extreme conditions. They are recommended for use in a wide range of heavy-duty applications and operating environments found on- and off-highway, including engines operating under heavy loads. Fully backward compatible, Mobil Delvac Extreme engine oils deliver exceptional performance in both newer and older heavy-duty engines.




Mobil Delvac Extreme engine oils deliver updated high-temperature performance under the extreme operating environments found in the trucking, mining, construction and agricultural industries. Accordingly, these oils meet or exceed the requirements of multiple service categories, as well as key original equipment manufacturer (OEM) requirements.

  • SAE 15W-40
  • Exceptional oxidation stability
  • Performance up to 2X OEM-recommended oil drain intervals (ODIs)
  • 46 percent more antioxidant and 44 percent more anti-wear additive than Mobil Delvac 1300 Super
  • Excellent soot and viscosity control
  • Excellent oxidation performance that helps reduce engine deposits to keep engines running reliably
  • Excellent anti-wear and anti-scuff properties help control wear in heavy-duty operation to help promote long engine life
  • Excellent low-temperature performance allows for increased oil flow to critical bearing surfaces at startup and controls low-temperature sludge formation in stop-and-go service
  • Stay-in-grade shear stability maintains viscosity in severe, high-temperature service, provides wear protection and helps reduce oil consumption
  • Excellent protection against oil thickening and degradation contributes to long drain interval capability, helping to reduce the number of oil changes and oil disposal needs
  • Sold as (4) 1 Gallon Jugs

Safety Data Sheet (SDS)


Mobil Delvac Extreme 15W-40 engine oil meets or exceeds the requirements of:

  • API CK-4, CJ-4, CI-4 PLUS, CI-4, CH-4
  • ACEA E9, E7
  • Caterpillar ECF-3
  • Cummins CES 20086, 20081
  • JASO DH-2

Mobil Delvac Extreme 15W-40 meets or exceeds the following industry and/or builder specifications:

  • Allison TES 439
  • Detroit Fluids Specification 93K222, 93K218
  • Deutz DQC II-10 LA
  • Mack EOS-4.5, EO-O Premium Plus
  • MB-Approval 228.31
  • MTU Oil Category 2.1
  • Renault Trucks RLD-4, RLD-3
  • MAN M 3575
  • Volvo VDS-4.5, VDS-4
Some parts are not legal for use in California or other states with similar laws/regulations

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