limbo wrote:My MR2 Gen2 turbo is eating oil. about half a litre every 500ks! I have been using 10/40.
should i go for higher weight oils? 15+/40+ how high is too high?
I am guessing synthetic will disappear faster as it thinner right?
You would want to either fix the oil burning or use the thicker oil. The thicker oil will be harder to start on a cold morning and be a bit more sluggish but it will last longer.
It sounds like your car has been trashed to buggery, has an oil leak or needs the turbo reconditioned, or all of the above. Maybe you could look at installing an oil catch can (assuming the piston rings are still intact). Half a litre per 500km sounds very worrying.
Motul is the sh!t, however it cost about $100 per oil change .