UNDERHOOD MAINTENANCE INTERVALS
This chart gives minimum maintenance intervals by miles or time, whichever comes first, based on average of 12,000 miles per year. The recommendations given are general industry standards, and may be more strict than your manufacturer's schedules. Obviously, the type of driving you do will also affect your maintenance program. Refer to Fig. 1 and Fig. 2 for service locations. Note: This chart is an attempt to cover all cars, please refer to your owners manual for factory recommended service intervals.
Service Location	Item	Check Every
	Engine
1	Check oil, add if necessary	Fuel Stop
2	Drain oil	3000 miles/3 months
3	Replace oil filter	3000 miles/3 months
4	Check valve clearance, adjust if necessary	12,000 miles/12 months
	Ignition System
6*	Replace spark plugs	18-30,000 miles/18-24 months
6*	Check spark plug wires	12,000 miles/12 months
6*	Replace spark plug wires	At least every 36,000 miles/3 years
5*	Replace distributor cap/rotor	12,000 miles/12 months
7*	Check/adjust ignition timing	12,000 miles/12 months
	Battery
9	Check/clean terminals and cables	3000 miles/3 months
	Starter and Alternator
9	Check electrical connections	3000 miles/3 months
10t	Check/adjust drive belt	3000 miles/3 months
l0t	Replace drive belt	At least every 24,000 miles/2 years
	Cooling System
11	Check coolant level	1000 mlies/1 month
12	Check condition of radiator hoses	1000 miles/1 month
11	Check condition of radiator cap	1000 miles/1 month
10	Check/adjust drive belt	3000 miles/3 months
10	Replace drive belt	At least every 24,000 miles/2 years
12	Clean radiator of debris	3000 miles/3 months
12	Drain/replace coolant	12,000 miles/12 months (Each Fall)
	Fuel & Emissions System
16*	Clean crankcase breather	12,000 miles/12 months
13	Replace air filter	12,000 miles/12 months
14	Replace fuel filter	12,000 miles/12 months
15	Check PCV valve	12,000 miles/12 months
10*t	Check/adjust air pump belt tension	3,000 miles/3 months
10*t	Replace drive belt	At least every 24,000 miles/2 years
	Air Conditioning
12	Clean condenser grille	3000 miles/3 months
17	Check for leaks at connections	3000 miles/3 months
10*t	Check/adjust compressor belt	3,000 miles/3 months
10*t	Replace compressor drive belt	At least every 24,000 miles/2 years
	Automatic Transmission
18*	Check fluid level/condition	6000 miles/6 months
	Brakes
19	Check brake master cylinder fluid level	1000 miles/1 month
19	Replace brake fluid	At least every 2 years
	Hydraulic Clutch
19*	Check clutch master cylinder fluid level	1000 miles/1 month
19*	Replace hydraulic clutch fluid	At least every 2 years
	Power Steering
20*	Check pump fluid level	3000 miles/3 months
10*t	Replace drive belt	At least every 24,000 miles/2 years
10*t	Check drive belt tension	3000 miles/1 month
* Denotes items that may not be applicable to all cars.
t Most modern accessory drive systems utilize one serpentine belt rather than numerous individual belts. New drive belts will stretch with use. Recheck the tension of a newly installed belt after 200 miles.