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Old 08-18-2009, 08:16 AM   #8 (permalink)
ConchZ2
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Join Date: Feb 2009
Location: connecticut
Posts: 329
Drives: 09 370Z red 6sp sprt
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I use Pennzoil Platinum Full Synthetic 5-30 and find it runs cooler and quiets the valve train.
You can purchase it @ Wal-Mart for $20 and with a $15 mail in coupon, it’s only $1 a quart.
I change my oil every 3K to 4K depending on my driving. You can stockpile by giving different names & addresses for the rebate (use cash).


http://www.pennzoil.com/documents/04...ine%20form.pdf
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