Here's a Blackstone UOA on my GMC Sierra with the 5.3L L83 V8. 39,237 miles on the truck. Was a free oil change from the dealer, full synthetic ACDelco 0W20 was used with a PF63E oil filter. I added half a quart of Valvoline 0W20 around 3000 miles on the oil change. This was mostly used for going back and forth to work, 20 miles one on two-lane back roads with some short trips around town, one 60 mile Turnpike round-trip with a 4500 pound trailer and two unladen round trips across the Turnpike to Pittsburgh from Philly.
I just started a new job with a six mile round trip commute, current oil change is eight quarts of Napa Synthetic 0W20 and a Bosch 3502 filter. I'll have it sampled again around 5K and maybe send it to one of the other labs to get a better look at fuel, I have noticed the OLM is dropping faster compared to before (down 8% in 350 miles).
I'll try and post up some of the UOA's from the Ram I traded in on this truck, and my old Dakotas if I can find them.
I just started a new job with a six mile round trip commute, current oil change is eight quarts of Napa Synthetic 0W20 and a Bosch 3502 filter. I'll have it sampled again around 5K and maybe send it to one of the other labs to get a better look at fuel, I have noticed the OLM is dropping faster compared to before (down 8% in 350 miles).
I'll try and post up some of the UOA's from the Ram I traded in on this truck, and my old Dakotas if I can find them.
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