just bought an 88 gxl today, 94k miles on it, interior, exterior in great shape...runs pretty smoothly also, automatic....ive read most of the time engine failure comes from lack of people knowing how to treat them. what maintenance should i preform now, and how often should i do "tune ups" to keep my engine running smoothly?

 

Change all fluids , and filters , spark plugs and wires, check the brake pads and rotors. check all belts and hoses, flush the cooling system , clean the battery post and clamps.

 

what would all fluids and filters consist of?