In article <email@example.com>,
> Synthetic oil real synthetic oil like Mobil one of BP 5000 .Even if castrol
> modifies conventional oil its still not synthetic and magnatec is castrol
> the cheapest oil the garage can buy .Synthetic oil does NOT glug up the
> turbo and runs cooler .It also flows faster when cold and wear rates are way
> down .Sure its more expensive BUT so is a new turbo .Just look in side the
> oil cap of a car thats running on synthetic its like a sewing machine where
> as conventional oil goes thick and greasy .I use synthetic oil on my wifes
> sewing machine for that reason .
I've read that converting to synthetic on an older engine invites oil
leaks. I don't know whether this is true or not, but there was a thread
on volvospeed.com on which many complained of oil leaks on previously
leak-free engines after switching to synthetics.