Mobil, Castrol, Opie, Millers or silkolene?

15w40?
15w50?

Blobeye MY05

thnks

 

The grades you quote are too thick for general use in an 05. You should be looking at a 5w/40, 10w/40 or maybe a 10w/50 in summer or if you regularly use full performance. For instance, Millers do 5w/40 and 10w/40 in full synthetic (CFS range) Silkolene do 5w/40 and 10w/50 in full synthetic.
JohnD

 

ROYAL PURPLE OIL, ENGINE RUNS A LOT COOLER

 

as above really, i used magnatec last time, 10w 40, i used 5w 30 for a bit but it was too thin really, it got burnt. If you go too thick it will block up the cam followers, like it did on mine. I bought it with a blown engine, it just turned out that the oil was too thick.

 

RCMS put Silkolene 15w50 in mine all the time. The Pro-R oil.

 

The 05 has solid lifters.
JohnD

 

So is '10w40 in full synthetic' best for long distance motorway driving on boost.

thanks.

 

Millers 10w60 on my car, never had a problem

Banny

 

Motul 300V (I use 15w50 actually)

 

That's what is in mine at the moment with the thick end of 400bhp (Millers CFS)

JohnD

 

Mobil 1 motorsport everytime