Did you mean: What Is the Difference between GL4 and GL5 Gear Oil?
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Gear oil

en.wikipedia.org/wiki/Gear_oil

Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in ... Also, transmissions which explicitly call for GL-4 oil may have been designed around this lower ...

The Difference between GL-4 and GL-5 Gear Oils - PDF

www.widman.biz/uploads/Transaxle_oil.pdf

The Difference between GL-4 and GL-5 gear oils. 2 of 11. A traditional GL-4 gear oil of any given viscosity has about ½ of the level of sulfur/phosphorous.

Differences between EP90 GL4 and GL5 - Automotive lubricant ...

www.eng-tips.com/viewthread.cfm?qid=120197

Apr 3, 2005 ... I've been told that I shouldn't put EP90 GL5 specification oil in the gearboxes because it will ruin. ... Differences between EP90 GL4 and GL5 ... GL5 gear oil is a lubricant with very high extreme pressure performance needed ...

The Difference between GL-4 and GL-5 Gear Oils as the Manual ...

www.linkedin.com/pulse/difference-between-gl-4-gl-5-gear-oils-manual-transmission-daniel-shi

Nov 18, 2015 ... When someone tells you that their GL-5 oil covers GL-4, remember they are correct as far as EP protection,but that is only half answer.

API Gear Oil Specifications - oilspecifications.org

www.oilspecifications.org/api_gos.php

GL-1, Active, The designation API GL-1 denotes lubricants intended for ... API GL- 1 service but below the requirements of lubricants satisfying API GL-4 service. ... protection from gear scoring in excess of that provided by API GL-5 gear oils.

What does API GL mean? - Southern Lubricants

www.southernlubricants.co.uk/aqadmin/media/uploads/5139b33d1da61/gear-oil-FAQs.pdf

API GL-1. Straight mineral oil. API GL-2. Mild EP for worm gears. API GL-3 ... API GL-4. Medium EP, MIL-L-2105 quality, moderate severity hypoid gears, manual transmissions. API GL-5. High EP, MIL-L-2105D quality, all hypoid axles, some ... What is the difference between a gear oil, an atf and an mtf and why are they.

MT-90 75W90 GL-4 Gear Oil - Red Line Synthetic Oil

www.redlineoil.com/product.aspx?pid=46

75W90 GL-4 gear oil (similar to SAE 5W40/10W40 engine oil viscosity); Popular ... in most GL-5 oils that cause damage; High performance gear protection and ...

Gear lube - Macy's Garage

www.macysgarage.com/myweb6/gear_lube.htm

Some say to use GL-4 like in the transmission, but others say that GL-5 is O.K. since ... The problem in the past with some Sulfur EP additive packages in gear oils and ... The problem is the difference between what is called active and inactive ...

Gear Oil Selection - Richard Atwell's VW Bus Pages

www.ratwell.com/technical/GearOil.html

The choice between using GL-4 vs. ... If you are thinking about using a GL-5 gear oil understand that it was designed .... Simply because there is a difference in the formulation and you cannot make the general statement that GL-5 is ok to use.

Manual Transmission Fluid, GL-3 vs. GL-4 - Scion FR-S Forum ...

www.ft86club.com/forums/showthread.php?p=2441471

So that post essentially explains GL-4 vs GL-5. The difference between GL-3 and GL-4 is that GL-4 has a higher ... designed to test gear oils and simply put a GL-4 oil will sustain more load carrying capacity than GL-3. GL-4 ...

More Info

Use of GL-5 transmission fluid in GL-4 spec transmissions ...

www.westfalia.org

The difference between GL-4 & GL-5 is ONLY that GL-5 has an impact .... What happens if API GL-5 gear oil is used in an API GL-4 gear oil ...

What is the difference between GL-4 and GL-5 gear oils ...

www.reference.com

The main difference between GL-4 and GL-5 gear oils is how much extreme- pressure additive has been included in the mix. GL-5 oil has roughly twice as much ...

rear differential - Difference between "Hypoid" and "Limslip" oils ...

mechanics.stackexchange.com

Sep 13, 2011 ... If you go to an auto parts store and look for GL-4, you most likely won't find any. What you will find is a lot of of GL-5 gear oils that say on the ...