Product Tested

front label

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back label

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MG Lubricants, Inc.

Company and Product Information

Corporate Office:
MG Lubricants, Inc.
Old Tappan, NJ 07675

Website(s): No Website(s) Found

Automatic Transmission Fluid


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.

MaxiGuard "Universal Multi Purpose"
Automatic Transmission Fluid "TYPE D-M"

Product: MaxiGuard Automatic Transmission Fluid
Labled: "Universal Multi Purpose" and "TYPE D-M"

Distributed By: MG Lubricants, Inc., Old Tappan, NJ

Purchased at: Edison, NJ

Date of purchase: 5-25-2016


Website(s): No Website(s) Found

Test Results and Assessment:

Whereas the product is labeled "Universal Multi Purpose," and "TYPE D-M," the results of the tests conducted on this sample show a product that DOES NOT meet any recognized specification of Automatic Transmission Fluid.

The Brookfield Viscosity is 616% higher than the maximum viscosity specification for a Dexron® III and Mercon® fluid. Furthermore, the organometallic additive levels in this sample indicate the product may be contaminated with used oil and abrasive material. Use of this product in modern automatic transmissions will likely cause harm.

It should also be noted that the front label of the product states “32 FL. OZ. 1 QUART (.946 ML)." This is incorrect in that one quart is 946 ml or 0.946 L, not 0.946 ml. Further, the "CAUTION" on the back label of this product is specific to motor oil, not ATF.

bottle icon Physical Properties pass
Elemental Analysis pass
Labeling pass

Note: Although the laboratory tests conducted cannot alone be used to establish if an Automatic Transmission Fluid meets all of its labeled specifications, they can be used to determine if it doesn't.

PHYSICAL TESTS (click for test details) - a Standard MaxiGuard
Flash Point in ºC (ASTM D92) 170/177 Min-c 207
Viscosity @ 100ºC, cSt (ASTM D445) 6.8 cSt Min 9.8
Viscosity @40ºC, cSt (ASTM D445) 61.0
Viscosity Index (ASTM D2270) 145
Brookfield Viscosity @-40ºC mPa s (cP) 20,000 Max 143,200
ELEMENTAL ANALYSIS (click for test details) - a, b
Calcium 867
Magnesium 14
Phosphorus, ppm 568
Zinc, ppm 636
Molybdenum,  ppm 32
Barium, ppm 3
Boron, ppm 10
Silicon, ppm 41
Potassium, ppm 4
Manganese, ppm 0
Titanium, ppm 0
Copper, ppm 1
Sodium, ppm 23
Vanadium, ppm 0
Silver, ppm 0
Aluminum, ppm 7
Chromium, ppm 0
Iron, ppm 99
Nickel, ppm 0
Lead, ppm 2
Antimony, ppm 0
Tin, ppm 0
  1. Standards, shown in yellow are established by API, SAE and others.
  2. Test Method for metal analysis is ASTM D5185.
  3. Dexron® III, 170°C minimum, Mercon®, 177 °C minimum.