I drive real hard, I pass everything that slows me down, I drag race to the speed limit and off road lots. I was wondering how often I should change my oil??? sounds like a dumb question but I don't think 3000miles is often enough?

 

I also have no pcv,just vent tubes its an old 390 v-8 4v gass guzzlin tire killer

 

I think that with modern oil that 3000 should be just fine. If you're worried, then get an oil analysis done. Blackstone labs will send you a free kit, and the analysis is only $20 or so.

XXL