Engine oil...... an interesting story

[leftybass209]

I'm taking some automotive classes at a local college. We had an engine with 200,000 miles come in for an inspection.

The owner religiously changed his oil every 3000 miles, give or take 100 or so. He was so OCD in fact, he carried spare filters and oil in case he needed to change during a long trip.

The engine mic'd out to OEM tolerances everywhere! Rod journals, main journals, bearing oil clearances, the whole deal.

Is it related to his rigorous service schedule? I think so. It was also a highway driven truck, never hot-rodded or abused.

Interesting none-the-less!