Peter Frederick wrote: > Note that dino oil , of any type, should NOT be run more than > 3000 miles between changes.
That's probably true in diesel Mercedes engines, but it's NOT necessarily true for other makes. My Honda Civic's owner's manual recommended 7500 mile changes on dino oil, or 3000 for "severe service." I considered my driving habits and decided to split the difference and change every 5000 miles.
