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Old 02-19-2009, 03:37 AM   #9
Scooby Specialist
Member#: 159738
Join Date: Sep 2007
Chapter/Region: SCIC
Location: SGV
2004 WRB STi 620awhp


Originally Posted by bluescoobywagon View Post
Coolant and oil can both be white. The easiest way to tell the difference is by watching how long it "hangs around." Coolant will dissipate pretty quickly (seconds), unless it's very cold out. Oil on the other hand will linger. If there's not much wind, it will stay around the car for quite a while.
Had to bring this back up since I'm getting the white smoke out of my exhaust and it does dissipate quickly. This is a newly built motor with about 500 miles. So this tells me most likely a head gasket failure according to bluescoobywagon's description above. I haven't done a leak down test but will soon. I had some knock events, stumbling at about 5500 rpm on a base map and is what most likely caused this. Changed dino oil after a couple hundered miles and dark not translucent as the new oil looked. Hopefully it's only requires a head gasket change.
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