Which Sea Foam product should I use first? [SOLVED]

Which Sea Foam fuel treatment should I use first? Can I use different Sea Foam products at the same time? And is it safe for Hyundai Sonata 2015 with approximately 146,000 miles?

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Jim D.
2 years ago

I’d start with Sea Foam High Mileage in the gas tank. Add a full can to a low tank of fuel (1/8 of a tank or so) and drive at least 20 miles. It works very well to clean stubborn deposits and residues. High Mileage is safe in any gas engine, so it would definitely work in your Sonata!

A Sea Foam Spray treatment through the intake would be a great follow-up, as it cleans areas that a fuel additive doesn’t reach.

As far as using different Sea Foam products at the same time – yes, you can!