Originally Posted by IamNemo
That's stupid if you use regular oil. That's all I'm going to say about that.
As for whether or not you can get away with 5k on regular oil, I wouldn't bother risking it. You may be able to, but oil breaks down and doesn't protect as well after time. Considering you commute 125 miles a day (even if it is just highway mileage) that oil gets pretty beat up after 3k. I wouldn't risk it. Castrol 5w30 isn't expensive (I used that before I switched to synthetic) and if you REALLY want to save money you could change your filter every other time.
:werd: I agree, 3100 miles a month is crazy mileage and with an aging car such as a '92 (going on 13yrs. old) why risk saving a few bucks and chance the longevity of your engine. Even if it is highway mileage (wondering how much it is a difference opposed to city in terms of oil), that is still extremely heavy usage. I used to do mine no more than every 4k miles, but now the I am putting more and more mileage on my car, I get it changed before it even hits 4k...closer to the 3k end now.
Hey Nemo, my DC headers just arrived today :yay: