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10w40 engine oil


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My Mercedes recommended anywhere from 5w-25 to 20w-50. It depends what engine it is, what the climate is outside, and the temperature. Of course maybe certain brands are bad... I like to run only Castrol. Castrol GTX in the Datsun, Castrol syntec in my Jetta.

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....i came across a few posts where it was stated that the 10w40 had issues with creating sludge so i was curious if this was the case.


Quotes by armchair dicks that probably ran the cheapest WallMart non detergent 0.79cents a liter crap in their cars. And then didn't change it regularly enough and now have an opinion about it.

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