TII Engine Oil

[Kron]

Thought I\'d give it a full service soon so what are people running and recommending for engine oil?

10-40 or 15-40 ?

[t2rew]

i use 20/50 mineral from the shell garage.

[g.miller]

hi
the hand books say:-
api SD,SE OR SF
10W-40 OR 10W-50
hope this helps
Grant

[Iwan]

I use Castrol GTX3, rated 15W40 for many years on my own and customer cars,  without any problems.

REgards
Iwan

[Grizzly]

LOL, I have been using 10/30 for ages, did\'nt think of checking