How often do you guys flush your ATF?

[thecheat]

Probably so.

I would go with what the above guys said, though...a drain-and-fill a little bit at a time. Drop the contents of the pan and replace that amount, then wait a few weeks and do it again.

Ok, is there a filter that is accessible in there or do I just replace the pan gasket?

[jblackburn]

Neither. Just pull the plug and let it drain, then put it back in. Just like an oil change

[thecheat]

Well then, easy enough! Last time i did a transmssion fluid change i had to drop the pan and it was a horrible mess.

[FlyingVolvo]

I do a drain + fill (after having done 4 in rather quick succession) every other oil change or so.

What ATF fluid do you use? Also, welcome back.

Thanks!

I use Mobil 1 Synthetic ATF. It's really good stuff, and it's the only full syn ATF that's easily available (at least in Ca/Az). With the sort of driving I do (often fully loaded, long drives, mountain grades in heat) I really appreciate it's ability to deal with higher stress.

[cn90]

At 105K miles, do I need to drop the pan or just do the ATF flush at "prescribed" intervals?

[jblackburn]

Just keep doing it like you have been - but, as some have suggested, I might lengthen the interval.

[adk793]

As i was once told, check your transmission oil every 3 oil changes and decide. If it is bright red and smells like ussual ATF, youre good, just keep driving. If it is slightly/severely discolored or has a burnt smell to it, it may be a sign that the fluid needs changing. If the fluid is sludgy brown or black, its a really bad sign something may be really wrong or it has just never been changes.

[dmb41]

Drain and fill every other to every 3rd oil change
Naturally the first time is a flush, depending on the condition and mileage.
I do not flush an (unknown) trans with over 60-70K miles

My S70 has 80k miles on it and I'm not sure if previous owner ever flushed the transmission fluid. Would you suggest just doing a drain and fill, or do you think it's safe to flush it completely and then fill?

[FlyingVolvo]

Drain and fill every other to every 3rd oil change
Naturally the first time is a flush, depending on the condition and mileage.
I do not flush an (unknown) trans with over 60-70K miles

My S70 has 80k miles on it and I'm not sure if previous owner ever flushed the transmission fluid. Would you suggest just doing a drain and fill, or do you think it's safe to flush it completely and then fill?

If I were you, I'd do at least 2 drain and fills first, wait a while, then do the flush (not a power flush from a shop, search MVS for the method with the tube).

[jblackburn]

^^^That's exactly what I did.