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Old 02-16-2004, 02:44 PM   #1
Scooby Newbie
Member#: 27960
Join Date: Oct 2002
Location: VA
2003 WRX Sport Wagon
Aspen White

Default Trans / Diff Fluid question

Found this comment on red line gear oils

75W90 GEAR OIL - recommended for most street driven and racing differentials. Excellent performance in conventional and limited-slip units. Also for limited-slip manual transaxles which require a 90 WT oil. Contains limited-slip friction modifiers.

75W90NS - recommended for manual transmissions and non-limited-slip transaxles that recommend 140 WT oils. Can be used in racing limited-slip units to increase lockup and reduce wheel spin. Street-driven rear-wheel drive cars should use regular Red Line 75W90 or 80W140.

Looking for feedback on either version and any problems encountered like syncro issues.

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