80w 90
#4
Former Moderator. RIP Icemark.
actually 80W is only used at below 0F (-18C), and 75W would be way way too thin.
90W is the recommended gear oil weight at above 0F.
If you are going to see colder weather, then a 85W90 or even a 80W90 would be okay. But straight 70W is way to light.
90W is the recommended gear oil weight at above 0F.
If you are going to see colder weather, then a 85W90 or even a 80W90 would be okay. But straight 70W is way to light.
#6
Former Moderator. RIP Icemark.
Originally posted by totallimmortal
Wow i was just about to ask about some gear oil, anyone tried valvoline durablend 80w-90? FC gear boxes take 2 quarts right?
Wow i was just about to ask about some gear oil, anyone tried valvoline durablend 80w-90? FC gear boxes take 2 quarts right?
The Superlight is equivelent to a GL-5, while the MT-90 is a GL-4 (but works in the place of most GL-5 gear oil, when used in transmissions).
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#12
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I think you'll find straight 90w syn to be difficult to find. Most come 75-90, unless you go with a conventional 90w oil, likely not syn. If someone knows a good 90w only syn, that's redially avaliable please post and prove me wrong.
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smellycat
1st Generation Specific (1979-1985)
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07-23-11 07:00 AM