Thanks for the question, Carl. Yes, you can use Sea Foam Motor Treatment in your 2014 Chevy Impala. It’ll work great in the gas and oil to clean residues and deposits that reduce performance. 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. Add it to fuel like this every 3,000 miles or once a year.
• 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. To help progressively clean up your oil crankcase, add it before every oil change.

Hope that helps and let me know if there’s anything else!

Thanks for the question, Fred. If you suspect there is water in the tank, use an isopropyl product like Heet. Sea Foam will help control small amounts of moisture in fuel, but something like Heet is designed for larger amounts.

Thanks for the question, Dusty.

Yes, you can add a can of Sea Foam Motor Treatment to a full gas tank and let it sit until the next day. It won’t hurt anything. You can leave it in for as long as you’d like.

If your goal is regular preventative maintenance, adding it to a full tank is perfectly fine.

If your goal is cleaning the fuel system, I’d recommend waiting until the tank is low, about 1/4 tank or less, then adding the full 16 oz can. Drive at least 10–20 miles before refueling. The higher concentration works much better and faster to clean the entire fuel system.

Thanks for the question, Mark. Yes, you can use Sea Foam in both the fuel and the oil in your Kia Spectra.

In fuel, I’d recommend waiting until the tank is low, about 1/4 tank or less. Then, add a full 16 oz can and drive at least 10–20 miles before refueling. The higher concentration works much better and faster to clean fuel gum, varnish, and other deposits.

In oil, use 1 oz of Sea Foam per quart of oil, added 100–300 miles before your next oil change.

High Mileage Motor Treatment is also a great option as it’s a great cleaner for older vehicles.

Hope that helps and let me know if you have any other questions!

Best,
Conner
Sea Foam

Hi Jan,

Thanks for the question! Here are two thoughts:

First, as far as stabilizing, Sea Foam will help stabilize the fuel and prevent it from degrading for up to two years.

Second, Sea Foam will help clean the idle jets as the treated fuel runs through them (you’d have to run it long enough that the treated fuel has time to work through the system and into the carburetor). I’d add two cans.