Can I use Sea Foam in my 2004 Hummer H2? [SOLVED]

Hi Kevin,

Good question. Yes, you can use Sea Foam Motor Treatment in your vehicle. With that size tank, 2 cans in a low tank of fuel would do a good job cleaning. I like to wait until the tank is low (1/4 -1/8 tank), add both cans, 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 deposits. Add it to fuel like this every 3,000 miles or once a year.

You could also try High Mileage Motor Treatment. It’s made specifically for stubborn residues and deposits in higher-mileage vehicles. It’s a great cleaner!