Thanks for the question, Jim.

Yes, you can use Sea Foam Motor Treatment in your 2014 Subaru Outback. It’s safe and effective in that model. You can use it in the gas tank and oil crankcase. Just follow the instructions on the can. Here’s what I’d do:

• 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.

Good question. Yes, you can add Sea Foam Motor Treatment to the oil. Add 1 ounce per quart of oil. We recommend adding it shortly before you change the oil. Just make sure you run it like normal a few times with the Sea Foam in the oil to give it time to circulate and clean. If you don’t have an oil change coming up, you can leave it in there until the next regularly scheduled oil change. It won’t hurt anything.

Yes, you can use Sea Foam Motor Treatment in your Fleetwood RV. It’s safe and effective in the gas and oil. Just follow the directions on the can.

Good question. Yes, Sea Foam is safe and effective in the oil of a 2004 GMC Savana. I’d use Sea Foam High Mileage as it’s formulated to clean stubborn residues and deposits after years of buildup. Add 1 oz of High Mileage per quart of oil 100-300 miles before your next oil change. Adding High Mileage before every oil change will go a long ways towards keeping the oil system clean and preventing problems caused by buildup.

High Mileage would also work well in the gas tank to prevent or overcome problems caused by a fuel residues and deposits (often, rough idle, loss of power, and lost fuel efficiency are caused by this). 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.

Thanks for the question!

Lots of people use Sea Foam as preventative maintenance to keep their engine in the best shape possible. Sea Foam cleans and prevents fuel residues and deposits from forming in critical engine areas, and a cleaner engine will run better, last longer, and avoid problems caused by a dirty fuel system.

Sea Foam is safe and effective in any type of engine and works great to keep things clean and running well.

In boat engines, add 1 oz of Marine PRO per gallon of fuel to every tank of fuel. Once a season, run down the fuel tank until you have 2-3 gallons, add a full 20 oz can of Marine PRO, and run it until almost empty.

In cars and trucks, use Sea Foam in fuel about every 3-5,000 miles. Add a full can of Sea Foam to a low tank of fuel (2-4 gallons), and drive until almost empty before refueling. You can also use Sea Foam in oil to clean and prevent oil residues. Add 1 oz of Sea Foam per quart of oil 100-300 miles before an oil change.