My wife's new truck uses 0W-40 Mobil 1 as recommended in the owners manual. Service interval is 13,000 miles.... It's hard for me to believe (read: trust) some of this new-fangled stuff. <img src="/forums/images/graemlins/lol.gif" alt="" />

I now have 500 miles on my rebuild - I've always stuck with the manufacturer's recommendations (in this case 10W-30), but wondering if I should switch to Mobil 1 and if so, which viscosity? I probably will just continue with the cheap Pennzoil and change it (and the filter) often.

Frank


'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum