CRC Industries 05319 Intake Valve Cleaner 11 Ounce Aerosol Can (4)

This stuff is great and easy to use. I used it on one turbo car and one non-turbo car. After using both cars became more responsive, rpm’s dropped a few hundred at thruway speeds and just ran better. Neither car is a GDI. I will be using on my GDI V-8 pick up truck later this week.

If you have a GDI vehicle engine, this stuff works if used regularly. Follow the directions, they are very exact on how to use.

If you have a GDI this cleaner is all you need to keep the intake valves clean. I used it on a 2011 bmw 550 with 150k miles after 1st treatment it ran like new.

Carbon and varnish gone

Used to clean carbon on intake for GDI