How to use Sea Foam in oil

Hi Mike,

You can safely leave Sea Foam Motor Treatment or Sea Foam High Mileage in there for the life of the oil. It won’t cause any harm.

Here’s the only reason we recommend adding it close to an oil change: Sea Foam reliquefies residues so they can be drained away with the old oil. In an older vehicle, Sea Foam will often cause new oil to become “dirty”/darker much sooner than it would otherwise (which is good, because that means the Sea Foam is cleaning!).

Adding Sea Foam 100-300 miles before your oil change gives the Sea Foam enough time to circulate and clean. You can then drain all the residue away when you change your oil.

Bottom line: it’s up to you. Safe either way.

Good question. As far as compatibility, yes. Trans Tune is compatible with automatic transmission fluid, so it will definitely work in a sealed transmission. Of course, these systems are more difficult for the do-it-yourselfer to service.

You can add Trans Tune for the full life/remaining life of your transmission fluid. Just know that it will reliquefy any deposits or varnish. No need to replace ATF as long as it isn’t too dirty or overdue for a fluid change. Hope that helps!

Thanks for the question, John.

If you’re asking about the 5 oz clear bottle (IC5 Concentrated Fuel Injector Cleaner), the answer is no, they are different. IC5 is formulated to clean fuel injectors in gasoline engines only.

Sea Foam Motor Treatment (16 oz in a red and white can) cleans and lubricates the entire fuel system.

There are larger sizes of Sea Foam Motor Treatment (including a “Pro” size in a 20 oz can, and a Truck and SUV size in a 20 oz can).

Hope that helps!

Good question, Adam. If it’s not a leak, you might be losing oil due to oil burning. Oil burning is common in older vehicles and it’s likely what your friend was referring to. Here’s an article that explains a few causes and solutions:

https://seafoamworks.com/shop-talk/stop-the-smoke-cures-for-burning-oil/

If oil burning is the culprit and it’s caused by deposits/varnish, Sea Foam will help overcome it.

Adding Sea Foam Motor Treatment or High Mileage (what I would use) during every oil interval will progressively help to reliquefy the heavier oil residue that’s plugging up your Toyota’s oil flow. Add 1 oz per quart of oil. Do not exceed one treatment per oil interval.

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

Oil screens on Chevys with active fuel management have a tendency to gum up and cause low pressure readings. When added to oil, Sea Foam Motor Treatment (or better yet, High Mileage Motor Treatment) will clean anywhere the oil flows in the crankcase. Try adding 1 oz of High Mileage for each quart of oil in the crankcase.