Ever since the advent of the engine monitor computer I have utilized it for the road vehicles. I do use synthetic oil and synthetic oil filter and typically 7500 miles
On the diesels usually 15,000 or more miles and dino oil
On the off road equipment typically 5000 miles an if were experiencing dust storms that gets dropped to 1/2 with the air filters checked as needed and cleaned or replaced
Never lost an engine due to running long oil change intervals in 70 or so years so sure not going to change anything I do now
I never did subscribe to the 3000 mile BS even with the old oil
Now if there had been a cutie working in the oil bay maybe it would have been different
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