Amsoil oil and synthetic filter, 15,000 miles or 1 year, been doing that for years, between me and the kids i have three cars at the 130K mark, no oil burning, no adding between changes, no nothing other than saving time and money.
mine too...did not even take it back to dealer even though it was under warranty, did not feel like waiting around service or renting a loaner...just got the two relay's, replace front and rear...took two minutes to replace them....parts are about 12 bucks each...
if you hit the auto button, and then shut off the AC button,(both lights go out) the system continues to operate without the AC compressor running in an "auto"mode, fan speed, air temp and vents, change as needed based upon the temp you select.