Quote:In Australia the original engine oil recommendations were SAE 30 winter SAE 40 summer .
As far as i know the Penrite designation 20w/60 officially doesn't exist- I would think they should really call it 20w/50.
They say it replaces their original SAE 30 oil - not sure of the additive package but I think they are suggesting it performs like an SAE 20 when cold and an SAE 60 when hot.
Cheers, Tony P.
Hi Tony, this is the stuff: https://www.penriteoil.com.au/applicatio...benefits#/
I suspect all those specs mean a lot more to you than to me!
I didn't realise Penrite are an Aussie company.
Simon