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      03-06-2012, 11:54 PM   #4
MFKN3
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Drives: 4.5L supercharged stroker E92
Join Date: Nov 2008
Location: Australia

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Sure is! I get about 500-550km entirely highway, so it's not the engine.

I think it's bad traffic, hot weather, driving hard & all the bolt ons sure don't help

My 335 used to pull timing when running under high boost on caltex fuel. Never had problems with shell or BP either DaveDee