Oil for '97 Bonneville - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-14-2009, 09:15 PM   #11
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im a big fan of castrol oils, they are the only thing that would quiet the lifters in my old 3100 buick.

I use Castrol Syntec in my Maxima and Castrol GTX in the wifes truck
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Old 01-14-2009, 09:15 PM   #12
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i use 10w-30 mobile 1 full syn for high mileage (10w-30) states that on the cap for oil. the last time i used 5w-30 my oil pressure read really low but stays normal with 10w-30
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Old 01-14-2009, 10:15 PM   #13
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ok thanks everyone i think im gonna go with 10w30 mobil1 synthetic high mileage. i already got 180k+ on my car
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Old 01-19-2009, 05:00 AM   #14
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Quote:
Originally Posted by GMMuscle91 View Post
I have a '97 Bonneville SE with 178,000 miles on it. Im about to do an oil change and was wondering what you guys think would be the best oil. Do you run high mileage oil, synthetic, a blend of it, or just natural oil?
Counting I have a 97 SE myself with 197,000+ miles, I usually run Castrol GTX High Mileage. It comes in full synthetic. Thats what I use.
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Old 01-19-2009, 11:31 PM   #15
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i went with 10w-30 mobil1 full synthetic extended performance. car runs smoothly and quieter than before.
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