pilotbraden wrote: I believe that atf began as a synthetic substitute for whale oil.
Cool! My squeaky whale problems are now a thing of the past. Thanks GRM!
pilotbraden wrote: I believe that atf began as a synthetic substitute for whale oil.
Cool! My squeaky whale problems are now a thing of the past. Thanks GRM!
car39 wrote: ATF was an cure for the 2nd gear synchro problem on early Subies. It worked.
I might have to try that. It's difficult to downshift to second and upshift at high rpms
In reply to ZOO:
I wouldn't use it to replace the fluid in a car that requires ATF, but the GM Syncromesh is a great band-aid for crappy syncros. Worked wonders in my 020.
I've used ATF in former cars with manuals that called for ATF. I've had great results with Redline D4 ATF.
The gm and chrysler boxes that call for Synchromesh oil by gosh want synchromesh oil. They use a three piece fibrous clutch type synchro, and you put regular gear oil in there, you can't shift slow enough to not grind.
I bought my 328i with Redline MTF in it and it was ok, but shifted like E36M3 when cold....
I'm switching to Redline D4 ATF tomorrow... he he!
I know that in the T-5 when BW added small clutchs to the synchronizers was when they changed from gear lube to ATF. Gear oil will destroy these clutchs or at least render them ineffective
I purchased my 96 750 il as certified in Jan. 2000 with 46,000 miles. In December of 2002 just after the certification ended I had a complete failure with 68,000 miles. I replaced the transmission at a local Dealer to the tune of $6200.00. This "remanufactured" transmission failed ( no reverse) on me 22 months later in January of 2004 with 86,000 miles. After 3 weeks of talking to BMW/NA, I was offered another "remanufactured" transmission if I would pay for the installation. I thought it was a good deal. Three weeks after getting the 750 back I found a ZF site that stated that a failure of the reverse gear could be expected on these transmissions. Had I found that website I think I would have saved the installation cost of $800+. Now I am looking at replacing the head gaskets, due to an overheating problem that my local dealer nickeled and dimed me on with -- radiator drain plug, expansion tank, then thermostat, then radiator. The 750 is a beautiful car and a pleasure when operating correctly; but honestly the owner body is rebuilding the fleet part by part.
thanks!!
All Saturn S-series owner's manuals say only put ATF in them. They specifically say not to use gear oil.
AWD Mazda boxes call for ATF and we blow them up. We don't seem to blow them up as often when we use redline MTL in there. There aren't any brass parts in that gearbox and I've never noticed any shifting issues using the heavier stuff, including using heavy shockproof or even torco 85w140... but that's just this stoopid gearbox.
The change to ATF from gear lube was started when transmission manufacturers started to use different friction materials on the synchronizers instead of just plain bronze. Normal gear lube caused this materal to break down, fail, or just not work as designed. With ATF they do! For many years most auto trans have used this same type of friction materials, before their use in manual trans. The fact that the fluid is thinnner doesn't hurt fuel mileage either. I've been using Mobil 1 syn. ATF for years. Redline may be better but Mobil 1 is as close as the nearest Advance, Pep Boys, or Autozone parts store!
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