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Old 05-18-2011, 04:05 PM   #8
 
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xDTool
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Join Date: Sep 2009
Location: Lafayette, LA
Name: Bob
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Originally Posted by Whack-A-Mole View Post
Also since the higher octane is a more controlled burn (resist preignition and detonation), your car is designed for regular, so it may not burn all the gas completely. A guy on Scionlife used high octane before he rebuilt his motor his piston heads were caked. I believe his name was Wesley scion.
this is what i was gonna say,

link to the thread
http://www.scionlife.com/forums/showthread.php?t=174189

to quote him:
"[I run] Premium, Mobil. They have carbon build up because I'm using Premium fuel, 97 octane is not recommended for the xD, the motor is not designed to handle that high of an octane, the engine simply can't burn the fuel, my motor is proof of that. Oddly enough, I never noticed a power loss, and it never ran poorly."

what premium will do to ya:
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