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I do not use Mobil One. I have 2 GMC pick ups both with over 290K and they both run and sound great. They have never had anything other than Pennzoil Full synthetic in them. I am using Pennzoil 5-30 full synthetic in my 2004 coupe.
What do you use?
Last edited by onlyavette; 06-26-2013 at 09:23 PM.
Amsoil in everything besides motor oil only because all my motor's had in it since day one was Mobil 1 so I just stuck with it. Pull a valve cover and it's still clean as a whistle at 97,000 I think the kind of motor oil you run is the most overthought issue ever lol. I think as long as it's synthetic you're good to go, street driving that is.
__________________ '06 Monterey Red '03 Millenium Yellow Z06,mayhemII cam,vararam,american racing headers w/cats,440.8 rwhp 389.7 rwtq, tuned by englandgreen '78aniversary paint, L-82, hooker header side pipes
Save the wave!
Whatever BRAND NAME full synthetic I bet the best buy on,,,and usually Wix filter. In a side bar,,A golf buddy put just shy of 600k on his pickup (that he bought new) with regular service and regular.Was still running fine when he traded in on the Cash for clunkers program.