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How to Clean Injectors with WD-40

Model: (Various brands) Various
Part: Fuel injectors

In this video, see how to clean injectors with WD-40, and the procedure is the same for any type of propulsion: petrol, diesel, methane, or LPG. For this operation, you will need a battery charger, preferably with a power button, and a small container to immerse the injector in WD-40. You will also need a cable with two fastons, while the other two ends connect to the positive and negative terminals. Spray a good amount of WD-40 into the container and proceed. You will see that the liquid gradually darkens, and residues are left deposited. Compare it with a throttle body cleaner, which remains relatively clean. Make a final comparison with a nitro thinner: here, no residues of any kind remain. The result of the comparison is that WD-40 is perfectly recommended for this operation and is suitable for all types of propulsion.

Updated on 29 July 2026 by ScegliAuto

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