i've just rebuilt my engine and it's going for mapping soon
so i'm going to change the oil
what grade should i use
i was using mobil motorsport 15/50
the car will be running approx 400 bhp and doing alot of trak days
thanks biscuittin

 

if it is just rebuilt i was told to use a very low adjative oil. There are some special oils for the job, I beleve that mobil and othe new designed oils can cause bore wash on a fresh engine,so its has to be run in for a 1000m

 

Use castrol GTX 10w40 for the running in with a new filter and then switch to mobil 1 again with a new filter once it's run in, the engine can't be fully mapped untill it's run in anyway.

PJay

 

After running in, i would use Castrol RS 10-60

 

Catrol 10/60 for me too!


Dave.

 

Yup, Castrol RS 10/60 for me too!

 

I would use TORCO 20W 50

 

Where is the best palce to get the RS from? Most places that I've tried seem to either charge silly money or not be able to get hold of it.

 

check out mike rainbirds add in the traders parts for sale on this bulletin board

 

Yep again, I bought some from Mike, 4x4 litres approx Ł88 delivered, a chuffin bargain!

 

After running in, i would use Castrol RS 10-60
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I think you will find that Matt @ML will do you a very acceptable deal