The more u change your oil, the better. Period. there is no best interval. Just use quality stuff and u be aight. I would still prefer to change my Mobil 1 every 3000-5000 miles, just to be safe an get the dirty oil out of my car (its dark brown, going on black for a reason, contaminents).<img src=icon_smile_sleepy.gif border=0 align=middle>
<img src="http://www.hyundaiwrc.com/action/photos/thumb/McRae_Shakedown_TNL.jpg" border=0> <img src="http://www.hyundaiwrc.com/action/photos/thumb/bat_hyundai1_sm.jpg" border=0> I love rallies. <img src=icon_smile_big.gif border=0 align=middle>