Quote:
Originally Posted by oilman
Simo,
Oil temps are the key here, it is common for people who turbo normally na engines to use a thick oil, thinking that it will require it, this is not always true.
If the oil temps remain below 120degc then you are looking at a 5w-40 full synthetic for all year round and track use, I would have thought this would be the way to go as you have a large oil cooler, using a thick oil thats running too low temps is as bad a running a thin oil at temps too high.
If however the temps rise above this then we would suggest a 10w-50 full synthetic.
Have a look at Motul, Silkolene and Amsoil.
Cheers
Simon.
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Thanks very much - I'm looking to get the turbo back on the road in the next few weeks and will definately be placing an order.