Originally posted by hmouta:
well, the amsoil is designed to go longer between changes. so while you'll go to wallyworld for cheaper oil, you'll make more oil changes than me and it'll cost u the same or more. the amsoil series 2k is like 7/quart. i do one oil/filter change a year and a filter change/oil top off at the 6 month mark. the average oil change ends up being around 10-14k miles. i've labtested the 14k oil and it was still good enough to continue using


I'm pretty sure, even though mobil doesn't claim it, that you could do the exact same thing with mobil1. And actually based on some test that somebody posted a while back (not a test from amsoil's website, obviously) mobil1 may prove better than amsoil for extended drain intervals.

98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15