Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Clean Injectors with WD-40

Model: (Various brands) Various
Part: Fuel injectors

Video tutorial

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


Related tutorials

How do you clean the Adblue injectors?
How do you clean the Adblue injectors?
(Various brands) Various Over time, like any fuel injection system in cars, even the adblue injectors tend to get dirty and clogged. To overcome this inconvenience, we have a…
How to Clean Car Injectors
How to Clean Car Injectors
(Various brands) Various Here’s how to clean car injectors. Lift the bonnet and secure it with the prop rod, then disconnect the fuel supply hose that leads to the injectors.…
How to Remove the Injectors from a 1.3 Multijet Engine?
How to Remove the Injectors from a 1.3 Multijet Engine?
(Various brands) Various If necessary to remove the injectors on this type of engine, proceed as follows: First, remove the covers and electrical connections of the injectors…

Other guides you may be interested in

How to Remove the Rear Seat of a Hyundai Tucson?

To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

Watch the video!


by ScegliAuto

More videos