Syncromesh Alternative

[Kyler Davis]

I was wondering if anyone knew the difference between the syncromesh transmission oil and regular gear oil?

[StepsideGMC]

I have heard that heavyweight gear oil can be substituted. Personally I've always coughed up for the syncromesh - it's cheaper on Amazon than at the dealer usually.

[elcamino]

A synchromesh fluid usually refers to a specialized fluid that contains special friction modification additives for transmissions that use mechanical synchronizer assemblies; those synchronizer assemblies may be made of carbon fiber composites, sintered metal. This specialized friction modifier is better for metallic and composite synchros in terms of shifting and life.

[Kyler Davis]

Thank you guys for the input!