Product Tested

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ExxonMobil Oil Corporation

Company and Product Information

Corporate Office:
ExxonMobil Oil Corporation
Fairfax, VA

Website(s): www.mobil.com 

ExxonMobil Corp., headquartered in Irving, TX, is an American multinational oil and gas company. The company was incorporated in 1882 and is currently the largest publically traded oil and gas company in the world. The company has three primary business segments, including upstream, downstream, and chemical. The company’s lubricants business resides in the downstream segment where it operates as ExxonMobil Fuels, Lubricants & Specialties Marketing Company. ExxonMobil is a leading global manufacturer and marketer of automotive and industrial lubricants and enjoys a long and strong position in synthetic lubricants, including the Mobil1 brand.


The Petroleum Quality Institute of America (PQIA) is an independent resource for information and insights on the quality of lubricants in the marketplace. Our mission is to serve the consumer of lubricants by randomly sampling and independently testing lubricants taken from the field. Test results are posted along with the brand names on the PQIA website. This webpage provides an analysis on the brand detailed below.

The following are the test results for the sample examined.

Mobil Delvac 1300 Super
SAE 15W-40 Diesel Engine Oil

Product: Mobil Delvac 1300 Super
Viscosity Grade: SAE 15W-40
Labeling: API CJ-4/SM

Marketed by: ExxonMobil Oil Corporation, Fairfax, VA

Purchased at: Edison, NJ

Date of purchase: 8-10-2016


Website(s): www.mobil.com 

Test Results and Assessment:

The results of the tests conducted on this sample meet the SAE J300 specifications for the SAE Viscosity Grade listed on the product label, and are consistent with the listed API Service Categories.

bottle icon Physical Properties pass
Elemental Analysis pass
Labeling warning

Note: Although laboratory tests alone cannot be used to establish if engine oil meets an API Service Category, they can be used to determine if it doesn't.

PHYSICAL TESTS (click for test details) - a Standard Mobil Delvac 1300 Super
TBN, mg KOH/g (ASTM D2896) 10.57
Viscosity @ 100ºC, cSt (ASTM D445) 12.5 to <16.3 14.68
Viscosity @40ºC, cSt (ASTM D445) 110.70
Viscosity Index (ASTM D2270) 136
Viscosity @-20ºC mPa s (cP) (ASTM D5293) 7,000 Max 6,353
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800) 13 Max -c 10.8
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 1,341
Magnesium 850
Phosphorus, ppm 1,250 Max 1,017
Zinc, ppm 1,140
Molybdenum,  ppm 51
Barium, ppm <1
Boron, ppm 70
Silicon, ppm 9
Potassium, ppm <5
Manganese, ppm <1
Titanium, ppm <1
Copper, ppm <1
Sodium, ppm <5
Vanadium, ppm <1
Silver, ppm <1
Aluminum, ppm 1
Chromium, ppm <1
Iron, ppm 1
Nickel, ppm <1
Lead, ppm 2
Antimony, ppm <1
Tin, ppm <1
  1. Standards, shown in yellow are established by API, SAE and others.
  2. Test Method for metal analysis is ASTM D5185.
  3. This specification is expressed to two significant figures, therefore results up to 13.5 are considered on specification.