Thread: Diesel injector cleaner additive ?

I used to have two of these utes, used to replace a glow plug every few months.

You don't need to remove them to check them, just remove the busbar acoss the tops of them then use a multi meter to continuity check them or a 12v test light attached to the positive terminal. Good ones will light up the test light, bad ones won't. they're basically just a large lightbulb.

You don't need to replace the full set either, just one at a time, takes less than 10 min to test and replace.