What is everyone using for Gear Box oil, I find it very hard to find a GL-4 oil except if I go with Royal Purple Synthetic. Will this work or will it be slippery for the synchros to engage properly. I am not sure if there are any yellow metals in the gear box and do not want to take a chance.

I know it must be here someplace but I could not find it.

Thanks in advance

 

I've removed you duplicate post from General Tech Help forum. Please do NOT multiple post across forums.

This is the right place for tech questions about your E-Type.

Graham