Thanks all. So the shell 5w40 definitely seems to be the way to go. Would it maybe be helpful to add a seal conditioner (for example, the forte seal conditioner) a motor flush or an additive to the new oil (for example, forte top end treatment) given the slight oil leaks of some seals.
Hi everyone,
I’m Dennis and I am new on this forum as a user, but actually have read quite a lot on this forum over the years. Could you guys maybe give me some advice regarding the best possible oil for my car.
My Car:
Ferrari Mondial QV, 1983, 78000 km
Factory oil spec is 10w50
Car is...