Originally Posted By: drtyler
Noticed 1 quart of make up oil added. Does the engine leak oil, or is it using?
Guessing this car is driven hard (iron seems higher than avg). It will be interesting to see how the report turns out with 300V.
Is 300V a long drain oil like 8100 X-Cess?
It's consuming it and he definitely drives it spiritedly. The 300V isn't engineered as an extended drain oil. We recommend 5K intervals unless a UOA on a specific vehicle shows room for adjustment, but i've seen UOAs up to the 9k range and the oil is still ok.