GM Upper Engine and Fuel Injector Cleaner GM Upper Engine and Fuel Injector Cleaner is a low VOC compliant formulation that delivers immediate engine deposit cleaning. This product has multiple service applications including in-rail fuel injector cleaning, engine intake system deposit removal, and piston top soaking clean-up.

• Delivers immediate engine deposit cleaning
• Use for in-rail fuel injector cleaning, engine intake system deposit removal, and piston top soaking clean-up

Delivers immediate engine deposit cleaning