Product Summary

15W40 Oil Weight, Synthetic Oil Type, CK-4 API Rating

  • Mobil Delvac Extreme 15W-40 is a premium and high-performance, full synthetic diesel engine oil that helps to extend engine life for modern diesel engines operating in extreme conditions
  • Works to deliver extended performance for up to two times beyond OEM recommended oil drain intervals*
  • Recommended for use in a wide range of heavy-duty, on- and off-highway applications including engines operating under heavy loads
  • Provides exceptional oxidation stability**, anti-wear performance, and high temperature performance
  • Excellent low-temperature performance for increased oil flow at startup, controlling sludge formation, and stay-in-grade shear stability

Key Specs

MFG. Part #127098
Oil Weight15W40
Oil TypeSynthetic
ZDDP EnhancedNo
Liquid Measurement4 gallons

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Mobil 1 127098 Details

Mobil Delvac Extreme 15W-40 is a high-performance synthetic diesel engine oil that helps to deliver extended performance for up to two times beyond OEM recommended oil drain intervals* for modern diesel engines operating in extreme conditions. Mobil Delvac Extreme 15W-40 is recommended for use in a wide range of heavy-duty applications and operating environments found on- and off-highway conditions, including engines operating under heavy loads. Fully backward compatible, it delivers excellent performance in both newer and older heavy-duty engines, meeting or exceeding the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and other service categories. This diesel engine oil provides exceptional high temperature performance, oxidation stability**, and resistance to corrosive and abrasive wear to help promote long life of critical wear surfaces. Mobil Delvac Extreme 15W-40 also offers excellent low-temperature performance for increased oil flow to critical bearing surfaces at startup, controlling fluidity and pumpability for smooth starting in cold weather.

Features:

  • Mobil Delvac Extreme 15W-40 is a premium and high-performance synthetic diesel engine oil that helps to extend engine life for modern diesel engines operating in extreme conditions
  • Works to deliver extended performance for up to two times beyond OEM recommended oil drain intervals*
  • Recommended for use in a wide range of heavy-duty, on- and off-highway applications including engines operating under heavy loads
  • Provides exceptional oxidation stability**, anti-wear performance, and high temperature performance
  • Excellent low-temperature performance for increased oil flow at startup, controlling sludge formation, and stay-in-grade shear stability

*Results may vary based on vehicle/engine condition, driving and environmental conditions Consult OEM or ExxonMobil before implementing extended ODIs.

** Based on the performance in the Volvo T-13 engine test.

Specs

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

Mobil 1 127098 Specifications

KEY SPECS
MFG. Part #127098
BrandMobil 1
Oil Weight15W40
Oil TypeSynthetic
ZDDP EnhancedNo
Liquid Measurement4 gallons
GENERAL
API RatingCK-4
Sold in QuantityBox
NotesSold as (4) 1 Gallon Jugs
Fuel TypeDiesel

Ratings & Reviews

5

11 Reviews

Customers say

Customers praise the product for being a high-quality oil, compatible with both diesel and gas engines. They appreciate its use in their motors, especially for trucks, and believe it's the best around due to its reliability and performance. Beyond motor use, customers note its value for money, pinpointing that it saves more on fuel. The oil's semi-synthetic nature is highlighted, being seen as a rare find. It is deemed worth every penny, with users willing to buy it repeatedly due to its quality and efficiency. They compare it favorably against competing products, marking it as superior.