Club 80-90 Forums

Hello iv just bought gl5 80w/90 oil for my 4speed box is this right??? And could any one tell me how many litres it takes to fill up
Many thanks sonny

GL4
4 litres

If you can find 75W90 in a GL4 (Comma sell it) otherwise an 80W90 GL4.
The slightly thinner oil improves gear shifting from cold.

Martin

Ok Martin thanks

Hi,

The reason for not using the newer GL5 you have bought is because it contains additives which can damage the soft metal components within the gearbox. I initially made the same mistake as you but changed to the correct spec as soon as I found out. Replacing it with the correct oil is alot cheaper than a gearbox rebuild!

Wilkinsons usually sell the GL4 (Comma) at a good price

Okay so you recon take the gl5 out as I only just put it in and go for the gl4 75/90 ??

I can't find gl4 75/90
I found ss80 is that any good ??

Yes, 80/90 GL4 will be fine, its what I have in mine. First to second change from a frosty start can sometimes be a bit stiff/slow but after that its fine.