Features

Features Advantages and Potential Benefits
Excellent oxidation and thermal stability Keeps engines clean and extends oil life
Good rust and corrosion prevention Long engine and component life

Applications

Recommended by ExxonMobil for use in:

  • Diesel powered equipment including 2-cycle applications
  • On highway light and heavy duty trucking
  • Off highway industries including: construction, mining, quarrying, and agriculture

Specifications

Mobil Delvac 1240 is recommended by ExxonMobil for use in applications requiring: Mobil Delvac 1240
API CF-2/CF/SF X

Typical Properties

Mobil Delvac 1240
SAE Grade 40
Viscosity, ASTM D 445
cSt @ 40ºC 158
cSt @ 100ºC 15.5
Viscosity Index, ASTM D 2270 99
Sulfated Ash, wt%, ASTM D 874 0.8
Total Base # , mg KOH/g, ASTM D 2896 7.1
Pour Point, ºC, ASTM D 97 -21
Flash Point, ºC, ASTM D 92 247
Density @ 15ºC kg/l, ASTM D 4052 0.90

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Browse 2 questions Browse 2 questions and 6 answers
Why did you choose this?
The Lubricant Store Store
need for detroit diesel 2 stroke for filling oil filters
KEVIN K on Jul 12, 2019
Proper oil for 2-stroke. Good price.
Carmine P on Aug 26, 2018
need for detroit diesel 2 stroke for filling oil filters
KEVIN K on Jul 12, 2019
mfg spec for 2-stroke detroit diesels
KEVIN K on Sep 5, 2018
Proper oil for 2-stroke. Good price.
Carmine P on Aug 26, 2018
This is the manufacturer's recommended oil for Detroit Diesels.
Hugh F on Jul 22, 2018
Simple is the best oil for my Detroit diesel 1971 MCI bus
Elaine W on Apr 14, 2018
mfg spec for 2-stroke detroit diesels
KEVIN K on Sep 5, 2018
This is the manufacturer's recommended oil for Detroit Diesels.
Hugh F on Jul 22, 2018
Someone added delo 400 15-40 in my engine containing delvac 1240 will they work together?
A shopper on Jan 28, 2018
BEST ANSWER: It is compatible, however, it would depend on the ratio. Was it a couple quarts? If so, that would be no big deal but you will have more difficulty in colder weather because there is a viscosity difference between the two.