How often can I use Sea Foam Spray to clean GDI intake valves on a 2015 Chevy Silverado 5.3L [SOLVED]

I have a 2015 Chevy Silverado with a 5.3L direct injection engine. I am learning about GDI intake valve issues and concerned about getting too much carbon buildup before it’s too late. If I use Sea Foam Spray, how often do you recommend a cleaning through the intake? Can Sea Foam Spray be used too often?

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Jim D.
Jim D.
4 years ago

For any gasoline car or truck driven regularly, GDI in particular, we recommend doing a Sea Foam Spray top engine treatment through the throttle body at least two times per year. It is also safe to do more treatments if you think you need to. Sea Foam Spray is like taking care of your teeth – it’s far better to use it to prevent issues, don’t wait until you have a costly problem.