Pontiac Grand Prix Forums : Grandprix

I was wondering what is the best like royal purple, Q HP, Mobile, or any other suggestions. I have a Comp g 2004 GTP

Just use whatever you want. I normally run Royal Purple 5w-30 or Castrol Full Synth. To be honest, I've tried way to many with no real dectable differences. When I switch to RP I immediately saw an increase in gas milage and what appeared to be a reduction in engine temps. For these reason RP is my fav, although, I wouldn't feel bad about running any quality name brand 5w-30 oil.

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04 Indy SS build #972
GPS Cam 1, TOG's, Tripleedgeperformance.com transmission-ported blower-build and tuning, PRJ wires, PRJ Rails, Stage 2 IC.

I use Castrol Syntec. But like Indeed said, any good name brand would be sufficiant.

Castrol 10w-40


Make sure whatever you do decide to use though, does'nt have the 'For Gasoline Engines Only' star of disapproval.

Not to thread-jack, but I bought some Mobile 1 extended performance which supposedly can be used for 15,000 miles. I probably won't run it that long, but how long would be safe? Also, which filter is it that is bigger and allows us to run more oil?

Sums it up pretty well:

http://www.grandprixforums.net/f18/m...00-a-5966.html (Motor oil for 3800?)

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2004 Impala LS - got some mods sold!!!
2009 Subaru Impreza WRX STI

NAIOA moderator Still Imp'n, just in a different Imp.

I use RP 5w30 and noticed a improvement in fuel millage about 2-3.

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LIVE LIFE FULL THROTTLE!!

just changed today, used castrol 10w-30....always what i run, with fram 3387A since its about all i can find , same as moms malibu

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'06 GP GT S/C - ALL visual, WizAired!
'00 T/A WS6 M6 - Almost FULL Bolt-on's!
'08 Raptor 700R - STOCK
'92 Suzuki GSXR 600 - Yoshimura Header & Exhaust

^^Frams are made with lots of cardboard, I run PF47, which is the GM filter, available from murrays, pepboys, and walmart (probably more, but I don't know all)

**PF52 is the extended GM filter

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2002 GT...Wizardair, ZZP 2.5 o/r dp, Special Eddition two-tone leather interior added, HUD added, 12" Brake Upgrade,strut tower bars, gmpp sway bars, poly motor mounts, -6an braided SS fuel hoses , Hptuned, Headers, Top Swaped.....
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Has anyone ever had anything hit or totally rip off their PF52 due to the extra length?

sorry at my local wal-mart all i can find is fram, everytime...yesterday i seen the first AC delco on the shelf but was no manuel around to check the correct codes to match the car, couldnt risk it...

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'06 GP GT S/C - ALL visual, WizAired!
'00 T/A WS6 M6 - Almost FULL Bolt-on's!
'08 Raptor 700R - STOCK
'92 Suzuki GSXR 600 - Yoshimura Header & Exhaust

I use a K&N oil filter.

cant get that around here, have to order from zzp or something but those r nice cause they have the wrentch addapter on the end just in case u have a hard time

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'06 GP GT S/C - ALL visual, WizAired!
'00 T/A WS6 M6 - Almost FULL Bolt-on's!
'08 Raptor 700R - STOCK
'92 Suzuki GSXR 600 - Yoshimura Header & Exhaust

Advance or Auto Zone should carry them, if not that is suprising. Do you have O'reilly's out your way?

never herd of an o'reilly....but yeah we got gay auto's

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'06 GP GT S/C - ALL visual, WizAired!
'00 T/A WS6 M6 - Almost FULL Bolt-on's!
'08 Raptor 700R - STOCK
'92 Suzuki GSXR 600 - Yoshimura Header & Exhaust

Yeah, I guess the Oreilly's probably start fadding out in SC. Don't have them back in VA either.

but yeah the K&N is nifty...I changed the oil in my moms malibu one time and the tire shop who changed it before put the filter on soooo tight that I used once of those tools to help unscrew the filter and Broke It....So I took a screw driver and plowed it straight throught it...what a mess!!!

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'06 GP GT S/C - ALL visual, WizAired!
'00 T/A WS6 M6 - Almost FULL Bolt-on's!
'08 Raptor 700R - STOCK
'92 Suzuki GSXR 600 - Yoshimura Header & Exhaust

I hate having to do that. Makes no sense why they put them on that tight.

yep hand tighten easily and half the time i'm already covered in oil since for some reason my oil likes to bottom out of the filter even after the drain..

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'06 GP GT S/C - ALL visual, WizAired!
'00 T/A WS6 M6 - Almost FULL Bolt-on's!
'08 Raptor 700R - STOCK
'92 Suzuki GSXR 600 - Yoshimura Header & Exhaust

Is the filter located behind the pass side front tire like ours? I always hated changing the filters that sat at an angle or totally sideways. Oil ends up everywhere. Thank god mine is straight up and down.