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      08-08-2009, 05:04 PM   #178
oneginee
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Drives: GT3 RS
Join Date: Oct 2007
Location: SE

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^

higher gearbox oil viscosity is only a band aid fix for this problem in my opinion. The problem is in the dual disc clutch not the gearbox. The synchro grinding noise is only the result not the cause of failed clutch disengagement (see my previous post ?). More slippery oil will reduce the grind noise but may not be formulated correctly for this MT. Your honda was not a dual disc clutch like the M3. I think it would be hazardous to put redline oil in the M3 MT. That said your input was interesting to read.
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