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Old 01-09-2008, 06:45 AM   #4 (permalink)
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Join Date: Jan 2008
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Fix Me - '71 Datsun 240Z

BlueStreak - '02 Bianchi Bianchi Eros
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Wow! I went to that link and using the AC Delco lubricant actually resulted in huge gains in drivetrain efficiency...on the order of 25%-35%. Considering that, I would consider looking at gear oil viscosity to be pretty important.
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