Keep looking for a downward trend. I wouldn't wait on oil changes until you get through 2-3 to keep flushing out the break in: metals and fine particles.
After years of reviewing oil reports I have learned the silicon level is the thing to watch. Should be in the teens once stable. Correct oil important, but dirt (even if fine particles) is what creates wear typically. Make sure your intake is well sealed and filter clean. I would go for a dry filter personally and just replace.
For oil, an HTHS of 3.6 or higher is your target. Tenths make a difference.
This is a measurement of viscosity and shear strength at 150C, which parts of your engine are seeing.
I would try Mobil 1 Turbo Diesel Truck 5w-40 also. Mobil's best oil IMO, rated for gasoline engines (SL or SM). You can see the DT40 is slightly under viscosity. Since fuel contamination is low I would suspect the viscosity improvers have sheared some.
Quote:
Originally Posted by hammdo
Going to bump this. Wanted to share what I’m experiencing with my setup:
I sent in my oil sample to Blackstone -- those folks are just great -- awesome service!
Here is my report:
Blackstone Explanation:
https://www.blackstone-labs.com/report-explanation.php
Can't argue with that!
I can go to 4000 miles on the oil and running the oil temps up to 270° is not impacting anything -- that is fantastic news!
Looks like the DT40 and ACDelco UPF48R is the ticket for my setup!
Next time, I'm going to send out a transmission and diff sample with the oil and see how that's doing.
Very excited about the findings...
Oil temps max on a 110° track day was 273°.
Link to my track day on 5/26:
https://www.camaro5.com/forums/showt...85577&page=146
My cooling is working very well..
-Don |