Hey guys I just purchased a 05 lgt wagon 5eat, it drives fine and only 28k , and just for peace of mind , I wanted to do a tune up. All fluids and spark plugs hopefully sp will help my gas milage , meter reading 16.5 per gallon,
But to my question about changing my tranny fluid , from reading and local people have different opinions on how to do it, I bought and oil synthetic ATF , and Lucas 75-90 for diffs, is it ok just to drain and fill ? Is that all that's needed to do? Also wrong thread but since I'm here is it recommended to change my coil packs when changing spark plug ?