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High Mileage Vehicle Maintenance Checklist


Treat your high-mileage vehicle right, and it will treat you right. Here's a maintenance checklist to help you get your high-mileage vehicle well past the 100,000 mark:

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Monthly (or More Often)

Photo © Erin Huffstetler

Check tire pressure
Check oil level (high-mileage oil recommended)
Check coolant level

Every 3,000 Miles

Change oil and replace oil filter
Check washer fluid level
Add fuel injector cleaner to fuel

Every Six Months

Check power steering fluid level
Wax car to extend life of paint/prevent rust

Every 5,000 Miles

Adjust clutch, if a manual transmission (some are self-adjusting)

Every 10,000 Miles

Inspect belts
Rotate tires

Every Year

Inspect brakes
Inspect hoses and clamps
Clean battery connections
Check brake fluid level
Check manual transmission fluid
Check coolant strength
Back-flush radiator from engine side with garden hose
Rinse off air conditioner condenser
buff plastic headlight assembly, if dull (to maintain good visibility)

Every 30,000 Miles

Replace spark plugs (some are designed to last up to 100,000 miles, so check to see what kind you have)
Replace distributor cap and rotor (if applicable)
Inspect spark plug wires (if applicable)
Change transmission fluid
Replace oxygen sensors (for vehicles manufactured late 1970's to early 1990's)
Inspect shocks for leaks and perform bounce test
Replace PCV valve
Clean throttle body

Every Two Years

Flush coolant system
Check battery electrolyte level

Every 40,000 Miles

Replace fuel filter

Every 60,000 Miles

Replace air filter
Change automatic transmission fluid
Inspect brakes
Inspect accessory drive belts
Replace timing belt
Have front end inspected alignment checked

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