Castrol RS 0w40

[mowog]

I see Halfords have this on offer at the moment for £17.49 / 4 litres. This is half the price of Mobil 1 Motorsport (10w50) which I normally use.

Any thoughts on running this in an S - it will probably be as 'thin' as Mobil 1 regular I guess.

Anyone else tried Castrol RS?

D

[z_chromozone]

It is too thin fo the V8S, not sure about the V6. I would expect it to be a little on the thin side for that too.

Z

[doddze]

I am running CFS 10w/40 (miller motorsports)in the V6.

Had the effect of keeping the oil pressure more constant ie sitting around 50 at tick over and running along rather than dropping off to about 25 at tickover with the stuff I had before.

Had a chat with the guys at the garage when the car was serviced and they said that that is the way the pressure should be.....