I'll probably regret this, but I seldom change oil in my cars other than at the 10,000 miles interval. My Previa was traded in at 249,996. miles with a strong engine. (The rest was starting to rust, front end issues etc. Usually get 200,000. miles out a a car before the body starts going, at which point I think replacement. On the Savage, finally got it done at 2,500. miles With the present 26 mile round trip commute, I'm anticipating changing oil once a year..but here in New England we don't often hit these extreme heat waves. Only vehicle I ever owned that I changed the oil frequenty was a four cylender Sunbeam Alpine Coupe, which engine I blew at 10,000 miles and again at 1.5 miles after the rebuild. The shop forgot to oil in the engine after the rebuild..maybee they thought it would save them a few dollars.

Well, hope Savage doesn't puke engine bits at me for keeping the oil in so long..