This report, #8, paid an additional $6.90 for TAN too, is about a mix, 5 qts M1 FS Euro 0w-40 and 1 qt Valvoline PB "Restore" 10w-30. Vehicle is a 2007 Yukon Denali w/6.2L we mostly use for long hwy trips. OLM indicated 51% remaining.
I bought the vehicle 5+ years ago w/130k miles. It had been road hard and hung up wet. All piston rings were stuck. It was consuming 2 ounces of oil per 100 miles, half sucked thru the defective GM designed pcv system into the combustion chambers, and half leaking out the rear main seal/cover and onto the ground. Varnish and carbon everywhere in the engine.
I immediately installed a catch can and performed GM TSB 10-06-01-008M:
https://f01.justanswer.com/ebrock63...il+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
No oil consumption since. Today it has 195K miles & 5691 hrs. Catch can collects about 2 ounces per 5k miles. No unusual noises. Gets 18+ mpg on the hwy and 15+ locally. I feed it premium unleaded. No complaints.
Here the link to the Fram Ultra XG10060 C&P I posted a week ago:
https://bobistheoilguy.com/forums/threads/fram-ultra-xg10060-c-p.380420/
Looks okay to me. I think a lot of the metals in the report are coming from this oil cleaning up the internals.
What say you?
I bought the vehicle 5+ years ago w/130k miles. It had been road hard and hung up wet. All piston rings were stuck. It was consuming 2 ounces of oil per 100 miles, half sucked thru the defective GM designed pcv system into the combustion chambers, and half leaking out the rear main seal/cover and onto the ground. Varnish and carbon everywhere in the engine.
I immediately installed a catch can and performed GM TSB 10-06-01-008M:
https://f01.justanswer.com/ebrock63...il+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
No oil consumption since. Today it has 195K miles & 5691 hrs. Catch can collects about 2 ounces per 5k miles. No unusual noises. Gets 18+ mpg on the hwy and 15+ locally. I feed it premium unleaded. No complaints.
Here the link to the Fram Ultra XG10060 C&P I posted a week ago:
https://bobistheoilguy.com/forums/threads/fram-ultra-xg10060-c-p.380420/
Looks okay to me. I think a lot of the metals in the report are coming from this oil cleaning up the internals.
What say you?
Last edited: