Can I add Sea Foam to every tank of fuel in a Chevy ZR2? [SOLVED]

Hi Michael,

Thanks for the question, and thanks for using Sea Foam! Here are a few thoughts:

• It’s okay to add Sea Foam as often as you’d like, including every tank. Sea Foam is petroleum based and you can add a lot of Sea Foam to fuel. The higher the concentration of Sea Foam to fuel, the better it cleans (up to a 1:2 ratio of Sea Foam to fuel).
• That said, if you are driving regularly and putting on that many miles, adding Sea Foam every 3,000 miles or so is sufficient to keep your engine and fuel system clean. You don’t need to add it to every tank. I’d recommend waiting until the tank is low (1/4 -1/8 tank), adding the whole 16 oz can, and then driving for at least 10-20 miles before refueling. It’s safe to add a high concentration like that and it works very well for cleaning fuel residues and deposits.