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Is Sea Foam safe in a 2017 GMC Sierra Denali Z71 4×4 with a 5.3 motor? [SOLVED]

I have a 2017 GMC Sierra Denali Z71 4×4 with a 5.3L motor. Is it safe to use Sea Foam gasoline treatment?

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Jim D.
3 years ago

Hi Jacob,

Yes, Sea Foam Motor Treatment is always safe in any gas or diesel fuel system, including your Sierra 5.3! Sea Foam is made with 100% petroleum ingredients that can’t harm your engine. Will work great in your truck’s fuel and oil. Just follow the instructions on the can!

Last edited 3 years ago by Brian Miller