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Old 10-21-2007, 03:28 AM   #2
nicknaz
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Member#: 108472
Join Date: Feb 2006
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personally i use a 15w40 in my wrx during track events. even a thick 30 weight oil like german castrol seems too thin for me to use at the track. the owners manual suggests something thicker than a 30 weight oil for 'severe' service and i think the track counts as severe service
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