Transmission Fluid Change | 30,000 miles

[G8Geek]

The TSB you are referring to is regarding inverted pump seals, not fluid level. I think 50,000 Miles is a good milage to have it done for more spirited driving habits.

Blackrider - Yes, I was referring to transmission flare TSB - seals, etc. Just an FYI that Dealers noticed that when addressing that issue that many of them had "low" (quart or so) tranny fluid. They explained how that condition can contribute to the behavior. There were reports of tranny fluid looking low (either it leaked, or it was low from the factory), at any rate, it wasn't the correct level in the tranny. Perhaps some have transmission irregularities and it is not caused by the TSB, but rather low fluid level.

[MGM GT]

Most people are swapping out a good bit of the fluid when changing converters. Might as well throw one in if you plan to do the fluid.

[G8Geek]

I just got back from the dealer and the tranny flush took 1.5 hours and it took 13.2 quarts. The process is kind of a pain in the neck especially with no dipstick, you have to add fluid, plug up, cycle through gears, add more fluid, etc. Maybe my dealer had a crappy machine, but this is how it went. It would of taken me probably 3+ hours, so I'm happy paying the $189 + tax. I should note that the tranny fluid did not look great. It was very dark in color and it was certainly due so I'm glad it is completed. My next change will probably be at 100K.

Most people are swapping out a good bit of the fluid when changing converters. Might as well throw one in if you plan to do the fluid.

-Not ready for that yet, not too good for a DD...at least I don't want to have to deal with stall :-)

[MGM GT]

-Not ready for that yet, not too good for a DD...at least I don't want to have to deal with stall :-)

It's perfectly fine, I daily drive mine and it has 41k miles on it. There is nothing to deal with if its tuned right, just use the skinny pedal like you normally do. The only side effect is going faster.

[G8Geek]

Thanks for the info MGM ... I'll consider it as a future upgrade.

[matthewo]

so you guys are doing a flush without changing the filter. while i really would rather just flush it, because you dont have to drop the pan to replace the filter and change the seal on the pan, but i dont like flushing old fluid threw the filter im leaving in there.

[Seattle09GT]

When are you guys changing your tranny fluid out. Dealer is recommending every 30,000. I have almost 50K on my 2009 G8GT. Please advise.

Ahhh, the dealer recommended service interval. You ONLY have to do what is required to maintain your warranty. That is covered in your owner's manual. Assuming you have an automatic G8 the requirements are 50K miles for hard driving conditions, and 100K miles for easy driving conditions. If you sit in stop and go traffic constantly, especially in hot conditions, if you do short, cold weather trips where the car can't warm up properly constantly, if you're starting and stopping over and over again for delivery or taxi service, if you drag race, AutoX and drive it like it is stolen all the time, severe service interval then. If you drive it like a grandma mostly and spend most of your time on suburban roads and highways than the 100K miles works fine. If you want to be SURE and you are on regular service schedule, 75K is a nice compromise.

The real question is, is the fluid burned or highly discolored? Then it is time to replace. I strongly doubt at 30K you need a tranny flush/fill - but the dealer would sure love to sell you that non-essential service!

[Mier]

I'm going to do mine at 50k. What fluid does the rear end use? I usually do them both at the same time just for simplicity sake. (that and I didn't change the rear-end fluid on my old truck and that led to a very large repair bill)

Also, I didn't know our power steering fluid and tranny fluid are the same.

[sweetair]

I am doing this right now to my other vehicle, a 2007 SAAB 9-3 Aero. I am now putting a NEW trannt @ the dealer. You gotta love when preventive maintenance ends up in disaster. It is under warranty but not what I wanted none the less.

[texn884]

If you have it changed with synthetic transmission fluid you can go 100,000 miles with no issues.

Make sure whom ever changes the fluid that they use the BG Products machine for the flush. They add a some items to keep every thing proctcted along with the synthetic tranny fulid.