Originally Posted By: cknaffle
This is the longest I have stretched a change out in this truck, so I'm looking for some reassurance that I'm not pushing the oil too far.
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My plan is to leave the oil until spring, which is when I normally change it (spring and fall). Any feedback is appreciated. Thank you.
Ahh, the venerable Dirtymax once again proves that it's extremely easy on oil.
You've got low single-digit wear per kilomile for all the wear metals (Fe 2.75 ppm/kmile; Cu 1 ppm/kmile; everything else less than 1 ppm/kmile), plenty of active additives left, no fuel dilution to speak of, soot is low and the oil is still in grade. The only missing part of this UOA is a TBN/TAN but I certainly see no reason why you can't leave it in until spring. Maybe pull a sample then and decide if you want to leave it in even longer?
Nice truck, nice report! Glad you're getting your money's worth out of both the truck and the oil. Keep it topped up and motor on.
Originally Posted By: Brons2
Posted in the wrong forum.
Post title does not conform to BITOG guidelines.
Perhaps a moderator can move it to the correct forum, and edit the title of the thread.
Perhaps you should apply to be a moderator, or is your BITOG-ennui too crippling to moderate?
Lighten up, Francis.
Originally Posted By: The_Jake
I would never chance an expensive engine on an inexpensive oil change. I would change it immediately. Once you go too far and ruin the tolerances in an engine you can't get them back without an expensive rebuild. I see this many times with customers who don't change oil often enough. Silly really.
Let's base oil changes on evidence rather than gut feeling. Did you bother to look at the OP's analysis? It looks fantastic and the Isuzu Duramax engines are well known to be extremely easy on oil and live long, healthy lives.
Originally Posted By: Boomer
Why risk an engine for a couple of bucks? You got great service out of the oil
What leads you to believe the engine is at risk? I'm honestly curious. What about the UOA or OP's post makes you think something's wrong?
He got great service out of the oil and it certainly appears to me (and the oil analysis company) that the oil is still providing great service.