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First 6 oil changes I used Mobile 1
7th oil change they were out of Mobile 1 where I was at so I tried the pennzoil syn (which I didn't like much, mpg dropped and the car was hotter than usual).

My last oil change this Saturday I used Royal Purple 5w30 .

It's not getting as hot as it was before. Before 199 - 205 was what I'd see since it's gotten warm here in AZ.
Now it's running no higher than 200 with the very occasional 203.

I believe it's getting a smidgen of better gas mileage as well and seems to be handling faster acceleration more "evenly".

I like it. was about 1 dollar more per quart, not bad.

__________________
2008 Mysterious GXP (MoMo)
Solo Mach "Shorty" and Solo High Flow Cat
ADR wheels, XenTec headlights/fogs.
Badges removed, tinted windows.
Pontiac symbol overlays all around.
VIN 100541 - Drove it home 7/13/07. As of today; 26,000 Miles

	beecee Senior Member Join Date: Aug 2007 Location: Valley of the Sun Stroke	First 6 oil changes I used Mobile 1 7th oil change they were out of Mobile 1 where I was at so I tried the pennzoil syn (which I didn't like much, mpg dropped and the car was hotter than usual). My last oil change this Saturday I used Royal Purple 5w30 . It's not getting as hot as it was before. Before 199 - 205 was what I'd see since it's gotten warm here in AZ. Now it's running no higher than 200 with the very occasional 203. I believe it's getting a smidgen of better gas mileage as well and seems to be handling faster acceleration more "evenly". I like it. was about 1 dollar more per quart, not bad. __________________ 2008 Mysterious GXP (MoMo) Solo Mach "Shorty" and Solo High Flow Cat ADR wheels, XenTec headlights/fogs. Badges removed, tinted windows. Pontiac symbol overlays all around. VIN 100541 - Drove it home 7/13/07. As of today; 26,000 Miles