PearlH22

I just changed my transmission fluid yesterday and went with the Pennzoil Synchromesh (designed for GM's and Chryslers). My gears engage much smoother now and there is almost no griding at all. I'm at 90,000 miles. I recommend for anyone changing tranny fluid soon.

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Solid

So you had grinding before?

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thepreludedude

i have been useing the GM synchromesh forever. I swiched to the Pennzoil this last time due to how cheap it is. I like it a lot but it seems to not hold up as long as the GM fluid. When it is brand new it seems about the same as the GM.

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PearlH22

Sort of, when I pushed in the clutch in gear before I'd feel more friction than now.

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Glaucus

Stupid question: What do you guys mean by grinding? If you mean grinding gears while shifting into gear, then I thought that was more a factor of the person doing the shifting rather then the tranny itself. If I grid gears it's because I miss-timed the shift (which isn't often). Or are you guys talking about something else?

- Mike

kellyk75

No, grinding when you put it in gear. Rev matching helps, double clutching helps, but it is from damaged syncro's. On my car, once I had my tranny fluid changed at honda (1st time for me to change it) the 5th gear started to grind. The only way I could avoid it was to rev match (had to be within 100RPM), not always possible, or to double clutch. My shifts were also very "grabby". Once I put in the GM, still ground for the first 200 Km's. After that...... smooth as silk.

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Glaucus

Ah, okay. Mine doesn't grind then. Should I use the GM stuff to prevent grinding or is it something to do only after it starts to grind?

- Mike

kellyk75

If it doesn't grind, I would keep using something else. Most people use Genuine Honda MTF fluid. I have read that GM Syncromesh doesn't protect as well as Honda MTF, but is a good patch once you start having problems. If you do a search, there is ton's of great info on this.

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Gerhard

B&G makes a friction modifier for MTL that tends to work well with Honda OEM MTL. They also make a synthetic MTL that works very well...

...it's generally thought that using Syncromesh is only buying you time.