Tranny fluid

I have ran B&M trickshift and it worked great. But i run the factory trans fluid to & it works very well & my trans is very well built but its a street car mostly.....

Trick shift is just type f with blue dye.

WalMart Type F will get the job done. If you transbrake you will need to change fluid often. I put a trans temp in one time, you only need it for one race , after that you KNOW what is happening and when. On the button it can go up 100 degrees a second, will drop instantly when button is released. No trans brake, never a problem with temp if unit is healthy.

Yes, any type F is good, just hard to get here. limited supply or what ever, then if you happen upon a case of it they want anywhere from 6-10 dollars a qt. So why not use B&M? 4.97 from Summit! That oil and that company go back along ways. So I wonder how B&M got the red out and put the blue dye in? Every company has there own formulas for their oils. And if it is just a dye job (which I seriously doubt) so be it, it is still a high quality oil! The stuff works and it is cheaper than I can buy from the local parts houses.

Was out today, had a senior moment, and went into a Wallymart to get some type F, going to change the filter on the D100 this weekend.

Totally forgot about the "black Friday" thing, I was early for that to start but they were getting ready, place was crawling with early loiterers and LOTS of employees.

OH, and they had 7 qts of type F, at 3.48/qt. I was looking for gallon jugs, a couple of 'em. nada.

And I certainly wasn't expecting it to be 3.48 /qt either!

I guess it's been a while since I bought any house brand stuff, was expecting maybe 1.50-2.00 ea.

Going back to my regular jobber, and get name brand for probably just a little more.

Has anyone here ran dexron6 in a 727 transmission or a A-518? I have read it is fully back words compatible to dexron3, From what I have gathered it should provide the same shift characteristics as dexron3 but it is synthetic and will last a lot longer and protect a lot better against heat. I have a non lock up A-518 that I have been running dexron3 in, but I am seriously considering trying the new dexron6.

The backwards compatibility issue with ATF+4 has a lot to do with dealers only having to stock one fluid.

It may be economics at work, but in reality why stock an older type fluid (or an ATF+2, ATF+3, Dexron III, etc.), when ATF+4 is a superior fluid to the other/older fluids and, except as noted with the Jeep and pre-TF trannies, is fully backwards compatible.

Depends on the intended usage and the ATF+4 is "superior" in lube properties but not friction properties that many desire.

Non-lockup 3-speeds don't need the lube properties.

jglen490, are you speaking from experience as someone who has built a few transmissions or are you just going by what you have read? My long term experience working on Mopars has shown me that the Type F fluid will make the 3speed torqueflite transmissions last longer and shift more solidly then the +4 fluid. I use +4 in all the Auto OD transmissions.

Since you've set yourself up as the top expert on the subject - then use whatever you want. It's no skin off my back, and there's no need to be defensive about it. My only reason for saying anything was to participate in the conversation and bring some reference material in that others might find useful - or not. If that is problematic, then perhaps we need to take this off-line.

Have a good evening.

Experience is the best teacher. PM sent.

Many of the listed properties that supposedly make ATF+4 "superior" also exist in previous fluids i.e.

*Controls oxidation - eliminates deposits
•Anti-foaming

Every new fluid gets a lot of hype with its introduction, some buy the hype but others.............

Bottom line, ATF+4 is formulated for OD transmissions where the planetary gears run continuously and have lockup converters that need additives to reduce clutch shudder. Not necessarily the best choice for a non-lockup 3-speed.