SR20DE engine. 136K miles. Obviously high Fe, Cr., Si. The report says Subaru Oil. I thought thats what was in it but it must be the Supertech Full Syn. Those are the only oils I use. I very recently changed the air filter. I just checked it and the rest of the intake for leaks. Everything is fine.
I'll change oil tomorrrow and send in another sample in 6000 miles. Prudence would dictate running a shorter cycle but I am not prudent with this vehicle any more. The good thing is that there is no K or antifreeze showing.Maybe replacing the air filter will correct the problem.
I'll change oil tomorrrow and send in another sample in 6000 miles. Prudence would dictate running a shorter cycle but I am not prudent with this vehicle any more. The good thing is that there is no K or antifreeze showing.Maybe replacing the air filter will correct the problem.
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