oil change about every 3mo. usually about 5k miles, i drive a lot. change coolant, trans, diff, brake and p/s fluid, fuel filter once a year. check my brakes when i rotate and balance the tires at teh oil change. if i go to the track i will flush the brake fluid before and after. ill clean the air filter when it looks dirty. i usually do the alignment every 6months or so. i check the battery and alternator at every oil change.