Sea Foam and higher grade gas [SOLVED]

After adding Sea Foam to a low tank and running the car for at least 20 miles as recommended, do I refill the gas with a higher grade of gas (unleaded plus)?

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Jim D.
2 years ago

That’s a great question, Alberto. Whether you add a higher grade fuel is up to you, but not necessary. Engines run best using the fuel octane they’re designed for. Even though octane has nothing to do with cleaning, higher priced pump fuel (Top Tier) usually shows higher octane. Hope this helps!