How to use Sea Foam in oil

Hi Noah,

Yes, you can use Sea Foam in your Mercury! Another great option is Sea Foam Marine PRO. It’s specially formulated for marine engines and gives boat owners everything they want in a fuel system treatment – it cleans fuel passageways, lubricates, stabilizes fuel, and provides corrosion protection to upper engine areas.

Hope this helps!

Hi Eric,

Great question – doing all three of those treatments will help keep your engine running strong for a long time!

Here’s what I’d recommend:

Gas treatment: every 3,000 miles or 3 months. For vehicles that sit for long periods of time in between use, add 1 oz/per gallon while they are parked.

Top end/intake treatment: every 7,000 miles or once a year.

Oil treatment: You’re absolutely correct to add Sea Foam to oil 300 miles before every oil change. Keeping your crankcase and engine clean is one key to a long-lasting engine, and adding Sea Foam is a great way to do it!

Hi Mike,

The ratio of Sea Foam to fuel will be the same for both your RV and generator. For preventative maintenance, add 1 oz of Sea Foam per gallon of fuel. For cleaning, add 2 or more ounces per gallon of fuel.

What I’d recommend for cleaning your RV’s tank: Wait until you have a low tank of fuel (1/8 tank or less). Then, add 4-8 oz of Sea Foam per gallon of fuel. That concentration is completely safe and is a great way to clean your entire fuel system. Drive at least 20 miles if possible before adding fresh fuel.

What I’d recommend for cleaning the generator: Here’s a great how-to instructional for cleaning your generator

https://seafoamworks.com/uploads/2018/12/HOW2_RV-Generator-Can-Hose-Method.pdf

Hope this helps!

Hi Jeff,

We recommend adding Sea Foam Motor Treatment to fuel every 3,000 miles. It’s completely safe to add it sooner, though. Some people prefer to add it to every tank of fuel (1 oz per gallon) as preventative maintenance.

For the intake treatment with Sea Foam Spray (which involves a hot soak), we recommend applying it every 7,000 miles.

Hi Samiullah,

Great questions!

1. No need to change the oil after using Sea Foam Spray.
2. Add 1 oz of Sea Foam Motor Treatment per quart of oil.
3. Drain the transmission fluid just like you would for a regular transmission fluid change. Keep an eye on the color of the fluid and change it if it gets dirty.