Will changing the filter/strainer make a difference to 99.9% of owners: NO, except for piece of mind, and for some, that is good enough. Is it BEST to swap out the strainer/filter: Yes Is it good to swap out the transmission fluid: YES If there were enough 'fuzz' as you call it to the point it would completely impede/block the strainer/filter, the transmission would not work to begin with. There is 'best' and 'does it make a difference.' The two often get mixed up on automotive forums. Not the best thing to do, but happens all of the time. Numerous transmissions go 500k miles without even a fluid change. So, I agree, but to me, this is an area where people sit around typing away on a keyboard splitting hairs which make little to no difference in the long run for 99% of owners out there. I have rebuilt multiple transmission and not little 400hp engine types. There are also no valve bodies or any other small orifices that can become clogged with excess "sludge".Ĭlick to expand.I am not sure why your posting that, to educate me? Or just for others? I should share, I would agree with your 'mechanic' to a degree. I wouldn't expect a filter for diffs or the t-case, as they don't have friction material that is going to be floating around, and even if they did (for limited slip differentials for example), fluid change intervals should be high enough that the excess friction material is removed. engine oil vs transmission oil), the transmission most definitely will become contaminated over the course of time with friction material from the 4 clutch packs. While I agree that they aren't the same (i.e. ![]() This will not include the changing of 5-8 or more quarts of fluid trapped in the torque converter which would have to mean that the old transmission fluid. The service will include replacing the filter and generally uses about 5-7 quarts of fluid. Not to mention the fact that there are magnets in the pan anyway to catch ferrous shavings/debris from the clutch plates/wear in. For a regular transmission fluid service, expect to pay around 75-150 for the fluid change alone. With frequent enough fluid changes, you should be good to go to not have to replace the strainer/filter on every fluid change, and looking at pictures of the strainer/filter show that is is not likely to be filtering out the friction material anyway, at least effectively. There are also no valve bodies or any other small orifices that can become clogged with excess "sludge".ĮDIT: I don't really think that changing the strainer/filter in the pan is that necessary at very low intervals - my biggest worry would be actually chunks of something getting sucked into the pump and being pushed through the valve body/solenoids/etc. ![]() Click to expand.While I agree that they aren't the same (i.e.
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