Originally posted by Buckshot77: The ratio of mix I was told for synthetic and FM is 1/2 bottle (2 oz IIRC) of FM on top of a full fill of the trans with new synthetic.
That's not an entirely accurate amount though. It all depends on what the main synthetic fluid is.
2 oz of FM was the prefered guesstimate for the "cocktail" using the Mobil 1 ATF.
It was however just what someone felt was best for them and it was figured out on syncros of unknown condition.
It works the same as people who try MTL and love it and people that have tried it and it gave them problems. Good speculation would be the later already had syncro issues.
I try to recommend a product that is already formulated for use in manual transmissions so it has a suitable mix of modifiers in it.
I liked the MTL. Ran that for a year before axle R&R about a year ago.
I've also had very good results with the Pennzoil Syncromesh. I've had that in for about a year now. Picked it up an an AutoZone when I was buying my axles.
Though the success is not surprising, I've used GM's Syncromesh in previous cars with great success.
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
