How to Grease Doors & Locks of a Car

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We rely on our vehicles to function as designed at all times and we become agitated when they do not. Simple maintenance is usually all that is required to ensure that they remain in tip-top shape. We change our engine's oil and our vehicle's brakes. We buy new tires and we make sure our wipers are in fine condition. Of all the car's moving parts, however, the doors and door locks are typically the most overlooked. Greasing doors and locks on a car is a simple do-it-yourself project that will prevent sticking parts, squeaking doors and locks and even broken keys.

Skill level:

Things you need

  • White lithium grease (aerosol can)
  • Graphite powder (lubricant)
  • Clean rag

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  1. 1

    Park vehicle on a flat and level surface. Make sure you are not in the way of traffic.

  2. 2

    Open the car's door as wide as it will open to expose the hinges. Spray a light coat of white lithium grease on all surfaces of the hinges (top and bottom) that appear to make contact with each other.

  3. 3

    Open and close the car door. Cycle the door through several openings and closings to ensure grease is worked into all areas of the hinges.

  4. 4

    Lubricate the car's door locks. Place the tip of the graphite powder tube into the opening of the lock mechanism. Give the tube one firm squeeze.

  5. 5

    Place a key in the car's lock and turn it back and forth a few times to work graphite into all areas of the lock.

  6. 6

    Wipe key and door off with clean rag.

  7. 7

    Repeat Steps 2 to 5 on remaining car doors and locks as needed. Repeat greasing car doors and locks every three months or as needed. Vehicles used in harsh environments such as extreme cold or dust (work vehicles) should have their doors serviced at oil change intervals.

Tips and warnings

  • Do not use graphite on interior of car as fabric staining might occur.

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