WebFeb 20, 2024 · You can use GL5 instead of GL4, though it does not mean you should. For the best performance of your vehicle’s transmission system, use the recommended oil type. What is the difference between GL-4 and GL-5? GL-4 is suitable for hypoid gear service when they are under severe service but are without shock loading. WebApr 10, 2010 · Apr 10, 2010. #5. It's ok to use. But, if you'll lose an ounce of hp with the thicker gear oil. The rear-end must be bigger/stronger and/or has a larger sump then the front-end since it only requires a SAE80/GL4 gear oil. SAE80 is 7cst (like ATF)-11cst (MTF/MTL). I would use Redline MTL, Amsoil MTF, or other equivalent GL4 fluid in the …
75w90 instead of 75w85 Jeep Garage - Jeep Forum
WebSep 9, 2024 · Therefore it is not recommended to use GL-5 in a gearbox unless the manufacturer allows this. To conclude: GL-4 is suitable for hypoid gear service when they are under severe service but are without shock … WebApr 23, 2024 · GL-4 and GL-5 are performance classifications, they do not ensure the oil does or does not contain Sulfur/Phos, Boron, Zinc or any other anti wear additives. GL-1 … greene county jobs pa
Can I Use GL5 Instead Of GL4? - Vitesse AuDessus
WebAug 17, 2006 · Here is a quote from another forum about GL-4 and GL-5 which may be why Yamaha recommends GL-4: {Quote} "GL5 is a different spec, and is not 'backwards compatible' with GL4. GL5 gear oil is a lubricant with very high extreme pressure performance needed for Hypoid gears where sliding and rolling contacts operate under … WebJan 28, 2012 · 1986 to 1996 Manual Transmission and Transfer case use API GL4 or GL4 and GL5 80W90 or 75W90. Differentials use API GL-5 SAE 75W-90 or 80W-90 … WebOct 27, 2009 · GL4 should not and will not mix. You should not use GL5 oil where GL4 is called for and the other way around. Using GL4 instead of GL5 is a bad idea and is not recomended. If you can not get hold of 75w-140 GL5 it's better to use 75w-90 GL5 instead of 75w-140 GL4 because a GL5 oil contains more EP(extreme pressure) additives. fluffits