Is Sea Foam Treatment Safe for Cars? 

Over time, your car’s engine and crankcase can get clogged up and reduce the performance of your vehicle. You can prevent this by maintaining and cleaning the inside of the engine with Sea Foam Motor Treatment.

Let’s review what Sea Foam is, which cars and fuel types it’s compatible with, and how to use it.

Person pouring Sea Foam motor and fuel treatment into their gas tank

What Is Sea Foam?

Sea Foam Motor Treatment is a fuel and oil additive that cleans and lubricates your car’s engine. It lubricates the upper cylinder parts of your car’s engine to help it last longer and protect it from corrosion. In addition, it stabilizes fuel by resisting evaporation and the formation of gum and varnish. Essentially, Sea Foam helps your engine run cleaner, longer, and more smoothly.

Is Sea Foam Safe for All Cars?

Sea Foam is compatible with most gas and diesel engine cars. If your engine has direct injectors, however, Sea Foam could cause a clog. A clogged engine can be very expensive to repair, especially for diesel direct-injection motors.

If your engine doesn’t have direct injectors, Sea Foam is entirely safe to use. It’s made with petroleum cleaning and lubricating ingredients and has no harsh detergents or abrasive chemicals. You can pair it with any fuel (gasoline, diesel, or blends) and any oil (conventional, synthetic, or blends).

Person opening up a can of Sea Foam motor treatment

Crankcase

Adding Sea Foam to your engine oil will clean up sludge, silence noisy lifters, and remove oil varnish.

Check your owner’s manual to find the oil capacity of your crankcase. Add one ounce of Sea Foam for every liter of oil. The best time to do this is 800 to 1,600 kilometers before your next oil change.

Sea Foam Motor Treatment (473ml)

16.49 $

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Sea Foam Motor Treatment (3.78L)

113.29 $

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Fuel Tank & Fuel Injector Cleaner

Putting Sea Foam in your gas tank will remove deposits in the fuel pump, injectors, or carb jets, control the moisture level, and stabilize the fuel. For diesel engines, it also serves as a de-icing agent.

One can of Sea Foam treats up to 60.6 liters of fuel. Pour it directly into the tank after fuelling up.

Sea Foam Fuel Injector Cleaner (155ml)

10.29 $

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Diesel Fuel Filters

When doing a fuel filter change on a diesel car, you can use Sea Foam instead of diesel fuel to prime the filter.

Take the old fuel filter off and remove the existing diesel fuel. If you have a spin-in filter, fill it up with Sea Foam before installing it. Start your car and let it run for two minutes. The next time you drive your vehicle, the Sea Foam will continue cleaning the fuel injectors.


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Top End Engine Cleaner & Lubrication

Sea Foam Spray is the same product as Sea Foam Motor Treatment but in aerosol form. It cleans carbon deposits from the air intake system, intake valves, and combustion chambers inside the engine. The bottle comes with a hook tool that can be inserted into the air intake.

Start your car and let it warm up to an idle speed of 2,000 RPM before spraying the Sea Foam into the intake. Shut the engine off and allow it to “hot soak” for 15 minutes. Restart your car and go for a road test of 8 to 16 kilometres to clean the engine out.

Sea Foam Spray (304g)

18.79 $

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More Maintenance Tips

To keep your vehicle in the best condition possible, check out our blog for tips and guides on DIY maintenance.

If you have any questions about Sea Foam Motor Treatment or Sea Foam Spray, visit your local NAPA Auto Parts store to speak with an expert. You can purchase Sea Foam in-store or online at napacanada.com.

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