Cosworth oil

**Threedoorboy** · 16-07-2002, 10:27

Whats The best oil to run in a cos? As ive heard mobil 1 is no good.

**Ferg** · 16-07-2002, 10:31

Castrol RS 10/60

note: not the 0/40 stuff you get in Halfords

Seems to be the best out there.

**wes** · 16-07-2002, 11:41

"Mobil 1 Motorsport" 15w/50 is the one to use in a Cossie

i don't use anything else, and is available from Halfords etc, but isn't sold in petrol stations.

DONT use the 0w/40 which is sold in petrol stations, basically it's the consistancy of water, and this is the one that people use and then say Mobile 1 is crap

I hear alot of people recommend the Castrol RS 10w/60, but i've never used it so i can't recommend it

**Magrah** · 16-07-2002, 14:17

I have heard Moby 1 is crap but I see what your saying Wes, I have always used the Ford Synthetic stuff they recomend.

**Hugh** · 16-07-2002, 18:11

As long as the oil is a synthetic higher grade than 10w (not a 0w) I don't think it matters. The most important thing is to change it regularly - I do mine every 3k