TRF recommends GL-4 because 5 is said to degrade brass parts in tranny.
Others say this is old news and not a problem. Others on the list say 5 is
"too slippery". I went with GL-4. TRF says it is hard to find, but I had
no problem in Northern California.
John Cowan
At 11:44 AM 9/29/97 -0400, you wrote:
>HI there Folks,
>
>Got a question:
>
>Is it true that my 80 Spitfire Transmission with OD should be filled with
>GL-4 rated gear oil, and NOT GL-5 like I thought ? Can anyone help me with
>this ? I had heard this through the Grapevine and I don't know how accurate
>this is.
>
>John S
>80 Spitty
>80-8
>
>
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