If you have never changed it, change out a small bit at a time - drain and fills of the transmission pan, about 3 1/2 quarts at a time, and space out the changes a few weeks to a month apart. After 4 of those, you should have mostly new fluid in there and the transmission will be happy with it being introduced to new fluid slowly. The procedure is pretty simple, just drain out as much of the transmission as you can (some fluid will be left inside the torque converter). Measure what you drained out and refill. Then drive it around to get the fluid circulated. Drain and refill, drive it around. How often should I change my transmission fluid? You should definitely change it at the recommended mileage regardless of whether you have a manual or an automatic transmission. Manual: Most manufacturers recommend that manual transmission fluid be changed every 30,000 to 60,000 miles. Under heavy-duty use, some manufacturers suggest changing Most people understand how important it is to change the engine oil and filters on their Toyota, but transmission fluid doesn’t always come to mind. The question of how often to get a Generally, you should change your transmission fluid about every 30,000 to 60,000 miles for manual transmissions. For automatic transmissions, the suggested time frame is between 60,000 to 100,000 miles. How long it takes you to reach this milage depends on your driving habits. Those that commute an hour in each direction will need to change it Transmission fluid is needed to lubricate the parts inside of an automatic transmission. Change your transmission fluid and filter according to the manufacturer recommendations August 30, 2023 by Jason. There are several symptoms to watch for that suggest your Fiesta might have low transmission fluid. Some of these signs include irregular shifting, inability to shift, dashboard warning lights, slipping transmission, and strange noises coming from under the hood. If you suspect that your Fiesta has low transmission WHEN TO CHANGE AUTOMATIC TRANSMISSION FLUID ON HYUNDAI, HOW OFTEN TO CHANGE TRANSMISSION OILIf you have Hyundai and you want to know when to change the trans Honda published these manuals saying to change the fluid after 100k miles, but that was before there was a recall on 03, 04 V6 transmissions. I don't think any dealership would suggest waiting that long, especially on the V6. I change the fluid on my V6 every 15k miles, and changed the filter at 60k miles. Keeping the fluid clean, by changing Step 4 – Re-install the transmission pan. If you are using RTV sealant, apply a thin coating onto the gasket and hold the pan in place. With your other hand, thread in all of the bolts until they are finger tight. In a crisscross pattern torque the bolts to 12 ft-lbs. Now, start pouring in new ATF+4 fluid into the transmission. QZAR.