You still need to change the transmission fluid, that's just a load of rubbish and how the repair shops makes their money...

 

No

 

Should I change all of it (like using machine to pump all 9 liters of oil and completely swap oil, or just go for regular oil pan and filter replacement which usually drains about half of the oil?

 

Drain the oil and drop the pan to replace the filter

 

Don't use the machine, they can create problems as they put pump pressure on the transmission internals. Although some would disagree, I've always used the cooler line to flush a transmission. Drain pan, drop and replace filter first. Refill. Outlet into a drain pan and just start the car. The second it spits you turn it off. Refill and repeat. It's a messy and time consuming job. I always jack up the car on top of a big tarp for that one. Always done me well.

 

Well, I'm definitely not a mechanic and had no tools to perform the operation, but asked because there are two type of changing oil service for an automatic gearbox.

Anyone of you think this could fix/mitigate the problem explained or it is just a maintenance that is good to carry on?

 

it's possible. i'd want to see if the trans is throwing any codes first, but besides that it is often said that the first step in troubleshooting is doing a flush.

that being said, there could very well be something else going on. an automatic transmission is an extremely complex machine and therefore can be very difficult to diagnose.

 

No

That's like saying life time oil for your engine, and we All seen those videos when you don't change you engine oil, it ain't pretty

 

Had the dealership suck out all the oil and put new oil into the tranny last year. No issues so far especially when towing. Also a piece of mind if anything blows up, it's on them.

 

Go on YouTube and search Mazda skyactiv transmission relearn, this might help.

this also works with our gen 3 cars.