trans fluid question? ... prob sounds like a dumb one

[bobbyspider]

my bp has a g series on it and I ran atx in it but for some stupid reason the book on it calls for gear oil ?!?!?!?!? im suppost to put atx in there..... rite?

[sketchman]

This is kinda like "which oil is the best?" IMO. Ford spec'ed ATX fluid in MTXs for a while. The mtx75 (Focus manual trans) does not call for ATF. Ford has a "special" fluid for it that is not ATF. One source says it's closer to 15w-40. I have my opinion why Ford would do that all of a sudden instead of just staying with ATF. But, again, it's like butt holes.

I would use the gear oil instead of ATF, or even some high mileage motor oil. Synthetic even. I mean how often do you change the stuff anyway.

Oh, I use Mobil One Euro spec for my manuals.

Here's a good read. Read all the way through it. The good stuff starts on page 2.

http://forums.focaljet.com/shift/659461-mtx75-fluid.html

[blueoval]

I'd just go to ford dealership and get it from them they'll look it up by the car just give them the car the tranny came out of and they'll sell you the right stuff most likely ford mercon 4

[bobbyspider]

the fookin book calls for like some crazy like 70 weight gear oil? I knew it took atx dex3 because matt (resuwrected)t and so did arty told me many times everytime I filled a trans ive asked them but my friend who likes to play everything by the book started questioning it that's the only reason I asked. I put atx in there and bit my thumb at him because I trust you guys more than the book :p

[Damkid]

Basically the general things I hear with the G series is.... NA = ATF.... Boosted = gear oil..... But like mentioned above, it's a preference thing

Personally I run ATF, even when I had the turbo under the hood I ran ATF

[bobbyspider]

^ good to have that confirmed by the mad scientist

[Damkid]

:lol: is that my new nickname? Mad scientist lol

[sketchman]

Also note gear oil is spec'ed differently than engine oil. So 15w-40 is close to 75w-90 gear oil. Weird, I know. Point is while the numbers make it look nuts to use compared to how thin ATF is it's not THAT big a difference. But for instance my 0w-40 Mobile1 will make a big difference when it's cold and I'm shifting through warmup going to work or coming home. And it should last a long time being synthetic. I'll probably never change it again.

[SrrTalkalot]

I took my car into a cheap mechanic, he put in Automatic transmission fluid (ATF) into my car, it literally after only a thousand kms broke on me, i took it to ford and they found the fluid was incorect, and it was driping from the sump on the car not being tight enough

Long story short tho, a, cheak your sump, and b use the best stuff no matter what, helps keep the engine healthy for longer

[sketchman]

He put ATF in your engine? :shock:

[bhazard]

I've run ATF in the oil to help clean things up. Just a quart though.

[sketchman]

Oh yeah, I can see that. Sounds like he took it in for a change and the "mechanic" filled it with ATF. That's weird.

[SrrTalkalot]

the gearbox oil haha, not the engine oil.