welcome to diesel bombers NoEcm sounds like you and uncle bubba have it figured out you need to go here and introduce yourself to the people of diesel bombers Diesel Bombers Initiation - Diesel Bombers :yeah:

Sorry I missed this response earlier. To be clear here, as I said in the first few post I haven't tried it yet, I was lookin for opinions and input on it. I do use a lot of Seafoam and this would save massive amounts of money for me over the course of a years time.

Be careful with replacing alcohol with acetone.
Acetone is a very good solving agent and can clean nearly everything in the shortest time.

But it also loves to swell and destroy rubber sealings in the smallest concentration rapidly!

So check for rubber sealings first or replace them as you have used acetone. Because they will be cracked and destroyed.

there are non alcohol based cleaners and lubes out there. https://www.amsoil.com/storefront/adf.aspx

Hi, I just thought I would throw in my 2 cents.

I noticed that in the homebrew recipe that there is no mention of any lubricant. Seafoam obviously has some kind of lubricant in it. Put it between your fingers and rub, you can feel it. The naptha you can smell, and the kerosene makes complete sense, because its an all round heavy weight solvent. We used to call kero 'coal oil', but a lubricant it is not :) If it contains isopropanol it would have to be %99.9, and not really a good choice anyway since it is from grain, not petro, and always contains a tiny, tiny, bit of water, and seafoam says on the bottle "dries water in the crankcase" or "dries oil in the crankcase" one of the two. Anyway, I doubt they would use isopropanol for that, rather ethanol, also from grain, but usually purer.

My monies on mineral oil for the lubricant. Its a byproduct of refineries, its cheap, and they can use it as a filler. Besides seafoam doesnt burn well, thats why you have to open the throttle up high to get it down the intake without killing the engine.

If you were to take naptha, kerosene, and isopropanol, surely it would spark up quickly, and seafoam doesnt burn well.

My best guess would be %50 mineral oil, %30 kerosene, %20 naptha.

Speaking of which, anyone know a good source for naptha nowdays. Used to get zippo fluid, but its a bit high.

Thanks guys, and remember, just my opinion :)

I created my own recipe based on the information in the Sea Foam MSDS.
Homebrew Sea Foam (SeaFoam) Motor Treatment

The MSDS sheet isn't a complete list of ingredients in any product. It only contains a list of ingredients that the government has deemed as potentially harmful or toxic to the environment and how to treat exposure to or hazardous cleanup of those ingredients.

I've seen many times when guy's think they can brew they're own home brew batch based off what's listed on these sheets.

Well, you did ask for homebrew sea foam recipes and this one attempts to faithfully reproduce it from published information. I do not think basing a recipe off an official MSDS is necessarily worse than substituting kerosene, toluene, or acetone just because a non-toxic ingredient might be missing. Take a look at the percentages and it should be clear that these three ingredients are the majority of commercial sea foam.
pale oil 40-60
naphtha 25-35
IPA 10-20

If you take just the low numbers and assume some sort of non-toxic unlisted ingredients, it would be 40-25-10 = 75% with 25% unlisted ingredients. You can't take all of the high numbers because 60-35-20 = 115%, which is not possible. I think the true ratio falls in the specified ranges, oil is the main filler/carrier, and any non-toxic unlisted ingredient would not help dissolve petroleum varnish/deposits/residue anyway.

So, the recipe I came up with is close to:
pale oil (pharmacy mineral oil or 10W-30): 6.5 oz
naphtha (home depot): 6 oz
isopropyl alcohol (pharmacy 91%): 3.5 oz

However, commercial Sea Foam is certainly not the only way to clean your air, fuel, or oil systems. Use whatever combination of solvents you want. I just thought this information might be helpful and relevant considering the topic of this thread. :)

Sorry Bud. Didn't mean to discount your recipe at all, you may have the perfect blend for all I know cause I'm clueless on this stuff. We just see it happen so many times that guy's follow the MSDS and and say they have the same finished product as the name brand that I get a little quick on the draw when I see it.

Hildstrom's info helped me. I really didnt think it contained isopropanol at all.

Also, I agree that it unlikely it contains anything else significant. I wish I had read up on this before I went and spent $9 on 16oz :P

I also agree with you bubba, the msds only lists hazarous stuff. Some ingrediants in things can make a difference in the recipie and not be listed in the msds because there not dangerous.

I'm thinking now about mixing up a batch for the car. What is a good source of naptha. Charcoal fluid has kero in it I think. Whats good?