Originally Posted by oil_film_movies
Originally Posted by StevieC
I'd use a fully synthetic oil instead of a blend any time a Turbo is involved.
400 degrees F, deposits might form in there, just sayin' ....
It's not here, not on da Walmart shelves YET, but its coming in the next few months:
--- which did well in the dexos1 GM turbo coking test
Until that oil comes out, pick Mobil1 Extended Performance or Annual Protection at wally world.
And, Fram Ultra oil filter does best on the 4548-12 filtering performance test, and is wire-backed, etc..... another walmart shelf item too, ez to find.
Yeah I have seen enough cooked turbo bearings in my time to know that a synthetic and an excellent quality one will still have a hard time keeping the bearings fully deposit free because of the extreme temperatures, but you can keep it as clean as possible and extend their service life by using a high quality fully synthetic engine oil to limit these deposits as much as possible.
It doesn't need to be Amsoil or something boutique (just so no one gets the wrong idea), but I would use something that is predominantly PAO like M1 E.P./A.P.