API GL5 Vs. GL4

[Doward]

Yep, I think so. The MTL is better than what Toyota original spec'd the transmission for

 

[jetjock]

Fwiw I've used MTL for 20 years. In fact other than the original factory fill my tranny has never had anything else in it, including MT 90. Zero problems thus far...

 

[tissimo]

Is there any decent GL 5 oil that doesn't shorten syncro life, or will it always be like that.

My celica trans shift like ass but require GL5

 

[jdub]

If you do some reading, the exception is a tranny that requires a GL-5. If the Celica requires it, it should not shorten it's life at all.

JJ - I thought you used MTL with excellent success , but wasn't sure.

 

[tissimo]

If you do some reading, the exception is a tranny that requires a GL-5. If the Celica requires it, it should not shorten it's life at all.

JJ - I thought you used MTL with excellent success , but wasn't sure.

Ahh, trying to find something to help my celicas shifting. I tried RL 75-80NS and it didn't help at all. I almost think it made it worse (not grinding or anything, just longer pause for the syncros). Its sucks cause the celica gearbox takes 5.5 quarts

Thoughts on Royal Purple Max gear oil?

 

[mkIIIman089]

Fwiw I've used MTL for 20 years. In fact other than the original factory fill my tranny has never had anything else in it, including MT 90. Zero problems thus far...

Its funny, I typically think of Red Line as being a "new" company... guess not so much.