I have a 2002 Mitsubishi Lancer ES with 129k miles on it. Recently I went for an engine oil change and the mechanic advised me to get a ATF change since it was dark pink in color. Today morning the automatic transmission shift stick got stuck in park position. I tried pressing the brakes hard and moving the shift but didn't work. Any help will be appreciated.

Do you have a Driver's Manual for the vehicle? It could be Synthetic Oil or Conventional oil. Either one is ok, but the synthetic is better to have installed from the beginning and continue using. If your running conventional oil and switch to Synthetic, you may cause the engine to start leaking oil. because of this change. Once you determine the type oil , a good name brand 30wt oil is fine. Change oil and filter every 3000-5000 miles depending on your driving type. Freeway or city driving

Did you service the caliper slide pins to ensure the caliper slides freely? A rusted pin causes vibration.

Also check your ball joints and ties rod ends for wear. New bigger rims can accentuate worn components.

Do your new rims include hub adapter rings to EXACTLY center the rims on the hubs?

15w-30 engine oil and ATF transmission oil probably an atf -4 oil
ring any automatic transmission shop for the oil specs
make sure that it is a genuine automatic transmission and not a cv transmission ( constant velocity )transmission as using ATF oil will destroy the belt and the transmission

ATF if it is an automatic or a good quality multigrade transmission oil eg. 65W-80 for a manual. Some manufacturers are now recommending ATF for manual boxes as well.

The owners manual says nothing about ATF change intervals. The warranty manual says check it regularly. In the severe service section of the warranty manual it says for severe duty change it at 30,000 miles(48,000 kilometers). I would consider changing the ATF no later than 50,000 miles(80,000 kilometers). Mitsubishi cars use there own Diamond ATF SP III. If you do not change it by 60,000 to 70,000 miles (96,000 to 113,000 kilometers) the transmission may start to act funny when shifting. Regular changes will keep you from experiencing this problem. Be sure to use genuine Mitsubishi Diamond ATF SP III or a synthetic equivalent.

You add the automatic transmission fluid through the dipstick/level check hole ( on the transmission) using a long skinny funnel. Be sure to only use Diamond ATF SP III or an equivalent. Mitsubishi transmissions require regular fluid changes (every 30, 000 to 35,000 miles) with the correct fluid or they will not shift correctly.

Check all ground connections, body to motor ground strap, battery to motor and body ground. Also change fuel filter if it has not been changed within 50,000 miles.

this is personal for all mechs,but a cambelt change,all oils and filters changed,check brake pads thickness and discs for pitting or scoring,then you only need to change bits as /when they wear out.....

Try this web site for info on Mits Galants http://www.thegalantcenter.net/forum.php

Automatic Transmission,F4A42-1