First Oil Analysis

[Smallblock454]

Some thoughts:

This oil is not full synthetic. It contains sulfur. Not a good idea in an full aluminium engine.

The detergents for a diesel engine are different from an fuel engine. Don't understand why you choosed that oil – because of zinc?

But i think the problem here is the amount of metal found in the oil. Because of the iron and chromium maybe you should check the IMSB. Don't know if that is caused by the diesel engine oil.

Regards, Markus

[Flavor 987S]

Originally Posted by Smallblock454

This oil is not full synthetic.

I'm not sure what oil the OP just drained, but Mobil 1 Delvac (Turbo Diesel 5W40) is a full synthetic oil. Infact, the entire "Mobil 1" brand is full synthetic.

[newBgeek]

Originally Posted by Flavor 987S

I'm not sure what oil the OP just drained, but Mobil 1 Delvac (Turbo Diesel 5W40) is a full synthetic oil. Infact, the entire "Mobil 1" brand is full synthetic.

It depends on what you call "synthetic". Ever since Mobil lost their spat with Castrol in the late 90s, all synthetics made in North America are allowed to use Group III base oils, which is basically conventional mineral oil that goes through an extra refining process to remove wax. Using a Porsche A40 spec'd made in Europe synthetic will virtually guarantee a high quality Group IV oil.

[JFP in PA]

Originally Posted by newBgeek

Using a Porsche A40 spec'd made in Europe synthetic will virtually guarantee a high quality Group IV oil.

Don't bet on it, there are very few mass produced Group IV oils available in the market, and exactly none of them say Mobil 1 on the containers.