Aircooled VW South Africa

sean wrote:

Riaan.N wrote: Mon Oct 01, 2018 10:19 am On the subject of oil, what gearbox oil is ok to use...what specific product?

I read a thread where GL5 75W90 is advised even thought it might not be safe for yellow metals. Is a GL4+5 oil then better?

Do not use the GL5 spec. A basic EP90 GL4 gear oil is available. Castrol also sells a 80W90 in GL4 spec. I found this to be the best one.