So I took my '04 8 to a local Mazda specialist shop for the 60k tune up, which involved engine coolant and transmission oil change. All seems to be fine, then about six weeks after the tuneup. My 8 is leaking transmission oil from the reverse switch and the engine coolant warning light would come on randomly during acceleration.

It's annoying cause the 8 was running fine before the tuneup. Do you guys think the shop messed up?