Just a data point - if you have a slightly leaky transmission, it will be a bit more leaky with the Valvoline Synth, and even MORE leaky with the RedLine 75W90NS. Shifts nice though. BTW - Do NOT use Redline MTL in it - this is a differential AND a gearbox, and the differential is the tougher application. MTL is not thick enough for the differential. Also do not use RedLine 75W90(without the NS). Redline's naming convention is backwards, NS = "Not for Non-Slip" i.e. it is for open difs like we have. If you use the straight 75W90 it contains the NonSlip additives which supposedly will make the gear syncros perform strangely. If you want further confirmation on this, call RedLine's engineering department and they will make the same recommendation. Dave S. --- In dmcnews@xxxxxxxxxxxxxxx, Jake Kamphoefner <jakekamp@...> wrote: > > > > I use a Valvoline full sythentic 75W-90. I highly recommend a sythentic oil for the manual tranny as it seems to help smooth shifting (especially into second gear) on those cold mornings. > > One note of caution: if the transmission isn't sealed well, the synthetic will probably leak a little. > > Jake Kamphoefner > 1063 > > > Paul <willinot@...> wrote: > What type of gearbox oil can anyone recommend? > > Thanks. > > Paul > #2493 > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/