One mechanics opinion about oil
Is fancy expensive oil worth it?
Forum Discussion
philh wrote:
Actually doing oil analysis, as shown above, shows that oil is good for much much much longer than "opinions".
Just got mine back. I was a little worried as I left the oil in the engine for 14,227 miles (and over 3 years!). Oil analysis looked about like you see above, my oil was sooty but still had a TBN of over 7 and could have gone another few thousand miles. The oil was Rotella T6 5W-40. Filter was a Fleetguard Stratopore.
I won't let it go that long next time (prefer to change it around 10k), but the data speak for themselves. It was not only fine, the oil was protecting the engine just as well as when I poured it in.
