Changing to Synthetic Tranny Fluid

[06workhorse]

ok so i already went to syn oil....now id like to go with syn tranny fluid...looking for advice from anyone who has done it....how many quarts on a drain and fill?...but more importantly what syn tranny oil is compatible with the LX....i read about some synchro mesh issue...any help?..thanks in advance.

[taste]

The manual should tell you the spec (AT or MT). Then find the Redline oil that meets that spec.

[av911]

I would stick with Honda fluid until your warranty expires.

[CarbonLimited]

I usd GM synchromesh and I swear by it. It helped with my 3rd gear grind that the RSX is infamous for.

[HondaRox]

I've heard a lot of good things about Royal Purple. My local tuner shop switched from red line to royal purple.

[Leonardo629]

I used Redline MTL in my 2002 Si, trouble free for 20000+ miles. Freeway driving, city driving...even track...

[Tennisjon2002]

I will be switching to the GM Syncromesh Fluid soon, heard only good things about it on S2Ki and Acurazine

[iVTEC]

On the Club RSX forums, various people recommend GM Synchromesh, Amsoil MTF and Royal Purple. Not too many people have noted an improvement with Redline MTL. Of course, the RSX is a different car than the Civic. But both the Si and the RSX have K series engines, six speed MT's and are made by Honda. So there may be similarities. (Oh, how I miss that K-series power!)

I tried the Amsoil in my RSX-S and liked it, although it did not completely take away the notchiness in the RSX 6-speed MT. It was way better than the Honda MTF. I tried the Redline MTL in my old 94 civic and really liked how smooth it made the shifts.

Club RSX members recommended changing MTF every 25K miles, not every 50-60K like Honda recommended. My ASE mechanic friend also recommends this interval, saying that the MTF gets really black and sludge-like after 20-25K.

BTW I have a couple of extra bottles of the Amsoil MTF if anyone wants them. I sold the RSX for a Civic with AT, so I don't need them anymore.