UOA results @ 284k

Comments — “Since your coolant level is steady, the potassium and sodium that are showing up in your oil may be from the hydroxides used to process the waste vegetable oil before it is used as fuel. You ran about the same amount of miles on this oil as the last one but iron (cylinders) and lead (bearings) increased. It could well be that the WVO is affecting wear; we have seen this type of wear in other diesels using WVO. The TBN was 6.4 this time. We suggest lowering oil use to ~4,000 miles to control excess wear metals. Check back to monitor.”

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