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Old 03-04-2012, 07:37 AM   #3
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Join Date: Feb 2007

Originally Posted by SoulApostle View Post
Hello all, I have a 07 wrx with cobb stage 2 catless. I just changed my oil a day and a half ago switching from gtx synthetic to valvoline now it acts puttery in my early rpms would switching brands over filling cause that because i did over fill a little
A: You can overfill it to a point it will bog the engine down.

B: Going form a thin viscosity like 5W30* to something thicker like 20W50, will cause a loss in horsepower felt by the butt dyno.

C: An engine overfilled with oil can lead to many problems depending how much overfilled it is.

D: Switching brands with the same viscosity shouldn't be felt unless your a hypersensitive freak.

* Uncle Scotty @ 5W30.
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