High Mileage Vehicle Maintenance Checklist

Clean the backup camera lens

Check the tire pressure 

Check the oil level (high-mileage oil is recommended)

Check the coolant level

Change the oil and replace the oil filter (newer cars may be able to go longer. Check your owner's manual to see what's recommended for your car)

Check the washer fluid level

Add fuel injector cleaner to fuel

Check the power steering fluid level

Wax the car to extend the life of the paint and to prevent rust

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

Inspect the belts

Rotate the tires

Inspect the brakes

Inspect the hoses and clamps

Clean the battery connections

Check the brake fluid level 

Check the manual transmission fluid

Check the coolant strength

Back-flush the radiator from the engine side with a garden hose

Rinse off the air conditioner condenser

Buff the plastic headlight assembly, if dull, to maintain good visibility 

Replace cabin air filter (you may need to do this more often, if you drive a lot—every 15,000 miles is a good rule of thumb. Older vehicles may not have cabin filters)

Replace the spark plugs. Some are designed to last up to 100,000 miles, so check to see what kind you have and when it will be due.

Replace the distributor cap and rotor (if applicable)

Inspect the spark plug wires (if applicable)

Change the transmission fluid

Replace the oxygen sensors (for vehicles manufactured late 1970's to early 1990's)

Inspect the shocks for leaks and perform bounce test

Replace the PCV valve

Clean the throttle body

Flush the coolant system

Check the battery electrolyte level

Replace the fuel filter

Replace the air filter

Change the automatic transmission fluid

Inspect the brakes

Inspect the accessory drive belts

Replace the timing belt (if your vehicle has a timing chain, it doesn't need to be replaced unless there's a problem with it)

Have the front end alignment inspected and checked

Inspect the U-joints

 Replace the oxygen sensors (for vehicles manufactured after mid-1990's)

Replace the rear axle lubricant

Have the alignment adjusted. This can help extend the life of your tires.