Thanks for the question!

For Sea Foam in the gas tank or oil crankcase, it does not matter if the engine is hot or cold. In the gas tank, Sea Foam will clean and lubricate as the treated fuel is drawn through the fuel system. In the oil crankcase, the Sea Foam will circulate and clean as the engine runs.

The best time to add Sea Foam to the gas is when you’ve got about 1/4-1/8 of a tank left. Add an entire 16 oz can, drive until it’s almost empty, and then refuel as normal. The high concentration works very well to clean.

The best time to add Sea Foam is 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil. Add 1 ounce of Sea Foam per quart of oil.

Thanks for the question, Edward!

Yes, Sea Foam Motor Treatment can be used with any conventional or synthetic motor oil. Just follow the directions on the can.

Thanks for the question! Yes, any Sea Foam product can be used in your 2020 Jeep Cherokee 6 cylinder.

Just follow the instructions on the can.

Here’s a little more info on how to use Sea Foam Motor Treatment:

• Sea Foam Motor Treatment in fuel. 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 deposits.
• Sea Foam Motor Treatment in oil. Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.

Let me know if you have any other questions – happy to help!

Hi Lori,

Thanks for the question!

Yes, you can use Sea Foam Motor Treatment in your 2008 Scion XB. It’s safe and effective in that model. Just follow the instructions on the can.

Here’s a little more info on how to use it:

• Sea Foam Motor Treatment in fuel. 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 deposits.
• Sea Foam Motor Treatment in oil. Add 1 ounce of Sea Foam per quart of oil in the crankcase. We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.

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!