Q45 Transmission Fluid

[rsiwicki]

did a search and can't find my old posts on how much and what type of transmission fluid to use. I ended up using Redline Syn or RoyalPurple Syn 18 months ago. Can somebody tell me how much transmission fluid is needed and what type I need?

thanks...

[elwesso]

Youll want about 14 quarts.... i assume your going to take this fluid and have it exchanged via a flush machine???

[qship96]

Redline d4 or mobil 1 is what I have used for the last 140,000+ miles,and with 171,000 miles on transmission it still performs as new.I change it every year,either by exchange machine or using the "2 minute drill" method,which I now believe is the way to go if you do it annually. If using an exchange machine{t-tech or BG} bring enough fluid to completely fill their cylinder{either 14 or 18qt,depending on machine}.

[rsiwicki]

yeah...it is going to a flush machine. either BG or something that does the same thing. Thanks for the info...

[rsiwicki]

Ugghh!!! This stuff is getting tiresome. I got my transmission flushed and do time constraints I had it done with regular fluid. Now I have lost about 50% of my shift quickness. I can't believe the difference. It feels great, just not as quickly shifting as it once was. So my question is, has anybody any real experience doing the transmission flush with different types of fluids and experienced noticeable change in transmission feel? I remember Q45tech said that the transmission was sensitive to different fluids, I just did not think it would be this much of a diference.

[jamesmost]

rob i went to syn. fluid only after i had my core trans. rebuilt. and it felt wicked mint. but i went from a '95 300+k transmission to my '91 trans rebuilt.l still getting used to ther TC thiugh.

[rsiwicki]

well....the idiot at the transmission shop overfilled the transmission by a little less than 1 Qt. They used the "s-shaped" wiggle as the fill line mark and not the "Hot Line Cross Hatched" mark. Took it back and they were like...the transmission level is fine, look at where it is in comparison to the wiggle. I was like really....then why is there a "Hot" line mark about 1" below the wiggle. Duhh!!!! So they took a little less than 1 Qt out and now all it good at the correct level. The thing that really sucks now is that I seriously lost about 50% of my quickness in shifts. I nolonger have the snappy slight head jerk shift that I once had and only can comment that it must be due to transmission fluid type. The car still shifts fast, but not like what I have had for the past 2 years with the LevelTen. I pissed off the tech at the transmission shop (not my fault the dipstick can't read a dipstick) and now I am cautious to take the car back there to do another transmission flush with the synthetic fluid and will have to find another shop.

It will probably be 50% of the reason that I sell this car is because I can't get any damn reliable service. Not that the this would have happened with a different car...it just gets old after a while as this car does need more TLC than a brand new car.

[Q45tech]

as this car does need more TLC than a brand new car

As all used cars do but rarely get.

My experiences were with Redline High temp ATF vs Redline D4 vs Mobil Syn ATF................different viscosities at 174F per specs of each fluid.

[maxnix]

It will probably be 50% of the reason that I sell this car is because I can't get any damn reliable service. Not that the this would have happened with a different car...it just gets old after a while as this car does need more TLC than a brand new car.

Don't believe for a second that is is brand dependent. It is technician dependent.

[rsiwicki]

If I lived in Atlanta you can sure bet that I would never even think of selling the Q and it would have been to the body shop by now for a full make over. I know it is not the Q's fault....just a new car that should require less attention over the next 3 years versus the Q sounds really good.

I think I will try the synthetic fluid again in hopes to regain my snappy shifts, but don't think I can get it done until next week. I am going to the 1/4 mile track tomorrow and now my transmission is probably 0.1 secs slower because of the shifts which suck.

Just had to vent about the mechanic....

[maxnix]

Can't say the M1 made my shifts snappier, but I can say they are indeed snappy with it.

[qship96]

just drain/refill using synthetic about 6 times using the 2 minute method at this point at home and you will effectivly replaced 80-85% of your current fluid with synthetic,and saved over 100.00 and the chance for more screwups

[maxnix]

just drain/refill using synthetic about 6 times using the 2 minute method at this point at home and you will effectivly replaced 80-85% of your current fluid with synthetic,and saved over 100.00 and the chance for more screwups

Better yet, http://www.bgfindashop.com Call first to confirm the service.

[qship96]

why waste the 100-130 dollar to use the machine to replace brand new fluid that is in there,when using the home brew method will get almost as much of the current fluid exchanged for the synthetic of his choice with zero chance of a screwup? machine is definitly better for getting rid of old,nasty,fluid left in past its prime- but in this case.... a total waste of dollars............ spend it on upgrading to Redline d4 and the rest to gasoline!

[elwesso]

why waste the 100-130 dollar to use the machine to replace brand new fluid that is in there,when using the home brew method will get almost as much of the current fluid exchanged for the synthetic of his choice with zero chance of a screwup? machine is definitly better for getting rid of old,nasty,fluid left in past its prime- but in this case.... a total waste of dollars............ spend it on upgrading to Redline d4 and the rest to gasoline!

SO AGREED!!! SO AGREED!!!

[maxnix]

why waste the 100-130 dollar to use the machine to replace brand new fluid that is in there,when using the home brew method will get almost as much of the current fluid exchanged for the synthetic of his choice with zero chance of a screwup? machine is definitly better for getting rid of old,nasty,fluid left in past its prime- but in this case.... a total waste of dollars............ spend it on upgrading to Redline d4 and the rest to gasoline!

Because it will evacuate all the fluid without harming the transmission or leaving the heavy grunge in your transmission.

One man's waste is another man's preventative maintenance. Like Q45tech says, "Member's standards vary."

I assure you he does not do the drain.

By the way, Rob, I read on a post somewhere where someone with a gauge on the output line reduced his ATF temperatures by 10° F just by changing to synthetic M1. Important for your application.

[qship96]

[QUOTE=maxnix]Because it will evacuate all the fluid without harming the transmission or leaving the heavy grunge in your transmission.

Brian,your above quote is interesting reading................ if he JUST did a BG flush with new fluid........ why is there any "grunge" in there to leave?

[Q45tech]

After a BG transmission flush the old ATF is stored inside the rubber bellows in the machine. Shop air is used to reverse the process to pump the old fluid out to shop waste tank..........obviously one could use gallon jugs to collect the old ATF for other purposes.

We clean out machine after every flush [by necessity] so little cross containation in the used portion of bellows.

I have had to do this more than once when Redline High Temp was used by less than knowledgable customers of other shops in winter.......the transmission won't shift or shifted really hard in cold weather.

Being the frugal fellow I am, I saved most of it to try in my car in Summer.

Gotta be really careful about special ATF [with high viscosity] as the shifts are very viscosity sensitive...............why the sump temp is measured and used by TCU to set line pressure controls.