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10-01-2006, 11:55 PM
#16
GTcars - Post God !
Join Date: Apr 2004
Location: Saraland AL
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if in a warm climate it may be too thin (aka if your average temp yearly is over 5 degrees it's too thin and breaks down faster) 10w30 is good down to about -30 I use 10w30 synthetic in the GP and get 21 MPG city driving and it's supercharged
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