Petroleum Quality Institute of America

PETROLEUM QUALITY INSTITUTE OF AMERICA TEST PROGRAM

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.

HESS Motor Oil
SAE 5W-30, API SN, ILSAC GF-5

HESS Motor Oil

SAE 5W-30, API SN/GF-5

Manufactured for: Hess Corporation

Purchased at: Conway, SC

Date of purchase: 9-19-2014

Website: www.hess.com

Test Results and Assessment:

The results of the tests conducted on this sample meet the requirements of an SAE 5W-30, API SN, ILSAC GF-5 motor oil.
	Physical Properties
	Elemental Analysis
	Labeling

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 test for details)	Standard	HESS Motor Oil Sample Test Results
TBN, mg KOH/g, (ASTM D2896)		7.09
Viscosity @ 100ºC, cSt, (ASTM D445)	9.3 to 12.5	9.76
Viscosity @ 40ºC, cSt, ASTM D445		56.78
Viscosity Index (ASTM D2270)		158
Viscosity @ -30ºC mPa s (cP) (ASTM D5293)	6,600 Max	5,237
Volatility, mass % loss, 1 hr, @ 250ºC (ASTM D5800)	15 Max -c	13.6
ELEMENTAL ANALYSIS^-b
Additives
Calcium		1,678
Magnesium		10
Phosphorus, ppm	600 to 800	761
Zinc, ppm		822
Molybdenum, ppm		<1
Barium, ppm		<1
Boron, ppm		4
Silicon, ppm		5
Potassium, ppm		<5
Manganese, ppm		<1
Titanium, ppm		<1
Copper, ppm		<1
Sodium, ppm		458
Vanadium, ppm		<1
Contaminants
Silver, ppm		<1
Aluminum, ppm		<1
Chromium, ppm		<1
Iron, ppm		<1
Nickel, ppm		<1
Lead, ppm		<1
Antimony, ppm		<1
Tin, ppm		<1
a- Standards, shown in yellow are established by API, SAE and others. b-Test Method for metal analysis is ASTM D5185. c - This specification is expressed to two significant figures, therefore results up to 15.5 are considered on specification.