UOA results @ 307k
Comments — “Thanks for the note. You mentioned that you think you are losing coolant and that may be. We had been blaming the potassium and sodium on the WVO you are using, but it’s also possible they show some anti-freeze getting in as well. Bearing wear is typically effected first when anti-freeze gets in the oil and that could explain the jump in lead this time. That’s a bearing metal along with cooper. Iron could be from the steel crankshaft. Switch to straight diesel fuel, keep a close eye on your coolant level, and check back in 4,000 miles. TBN was strong at 7.4.”
