Is it safe to add Sea Foam to the gas tank of a hybrid to keep it running smooth? [SOLVED]

Thanks for the question, Liz!

Yes, Sea Foam Motor Treatment is safe and effective in the gas tank of your hybrid car. Just follow the directions on the can. Here’s what I’d do to get the most out of a can of Sea Foam:

I like to wait until the tank is low (1/4 -1/8 tank), add the whole 16 oz can, and then drive 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 keeping an engine running smooth.