Originally Posted By: zeng
It's without VW MB approvals ....
I would be hesitant with a 10K OCI, yes..possibly up to 7500 mies.
.. am pushing Quartz 7000 Energy 10W40 SL VW 501.01/505.00 MB229.1 towards 8750 miles with 500 ppm sulphur gasoline fuel.
Well, you may be right afterall .
It's VW 505 00 and MB-Sheet 229.1 approved. That said, no VW or MB Sheet approvals does not mean you can't do extended drain intervals. Many GM products are running 10,000 miles on Dexos1 oils through the OLM, drain intervals are application specific.
To the OP: Can you get Liqui Moly Synthoil 5W-40?