Yes, injector cleaner works on diesel engines, provided it is compatible with that system. Make sure it specifies that you can use the formula on diesel. If you rely on biodiesel, make sure it tackles ethanol issues. Many cleaners work on all types of engines, but if you use the wrong one, it can cause problems.

Does diesel fuel injector cleaner really work?

To put things bluntly; yes, fuel injector cleaner does work, but only if you're using it correctly. ... As explained earlier, it is able to remove carbon and other deposits in fuel lines, but in Techron it is added in low quantities, meaning it can take up to 5 full tanks of fuel before deposits are removed.

Do injector cleaners actually work?

Do Fuel System Cleaners Work? Yes! When used regularly, fuel system cleaners can help work to remove harmful deposits and keep new ones from forming. They are especially important for engines running on gasoline containing Ethanol and fuel-injected engines.