Used it (not in the oil though) and didn't have any problems afterwards.

 

Same here I didn't use it in my oil.

I'm a believer in this stuff. I tried it last night after reading this entire thread and follow the intructions(*easiest DIY ever the hose is literally right there.) My VIII didn't smoke excessively, but did for about 30-45 seconds. I pour it both in the tank and let it sip via ntake. This morning once car was cranked, it erupted like I took of the negative battery terminal. It settled to a smooth idle quickly. I really wish this was an exaggeration but this is not. After pulling from the drive I did see a little some for 8-10 seconds than it stopped. throttle is a bit sharper. Stop and Go traffic is smooth from transition from idle to throttle is great in my car, maybe not same result for others.

 

Bump for this stuff... Just bought some

 

I did my girlfriends car and it runs noticeably smoother. I can't comment on the gas mileage though, I have no idea. She said it was like night and day. Her car has like 120k miles. I've done it on every car I've owned and also my parents... I'm sold on it. I have never put it in the oil though

 

I have been using SeaFoam for a long time, and have always had great results. However, I got tired of paying $8-$10 per bottle, mostly because of how many vehicles I have... 5 cars x 2 bottles per car every couple months (one in the tank and one via vacuum). So I did look up the MSDS, and with some trial and error (along with help from some buddies at Dow Chemical) found a pretty close formula. I have been using this home brew for months now, and it seems to work EXACTLY as SeaFoam does.

Plus it costs me about $6 to make 2 gallons

 

you shouldn't need to seafoam your car every couple of months... they actually advise against excessive use. Use it once only if you bought the vehicle used, otherwise take care of your vehicle and it should stay fresh

 

I may need to try this stuff out.

 

Could you post up the ingredients you used, only one place I've found in Australia to buy it (on ebay) and they want $34 a can posted, be really good to brew some up myself. I would buy some from the states but no one will post it because it's flammable. Any help will be very much appreciate.

 

How would you use this for an oil change? Do you drain the oil and idle it for a few seconds, add it to the oil then idle it. Interested i want to change the oil soon

 

Wow. I always thought Seafoam was another auto parts gimmick item, like radiator stop leak and head gasket sealant. This thread has certainly changed my opinion. I'll be adding this to my to do list for the Evo and the rest of the stable.


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have used seafoam on several of my cars and always gain a bit of mpg's after using it as well as smoother idling on some of the cars.

 

Let me clarify- by every couple months, I specifically meant 4-5 months. Which is pretty close to SeaFoams recommended instructions, depending on how many miles you put on a vehicle. I do a lot of driving, so this ends up being routine with every oil change.

Also, I did some testing on an old beater to see what negative affects would happen with over use... I used one can via gas (only 3 gallons max) and one can via intake/vacuum every week for 4 weeks. Only negative that I foun was plug fouling: a moderate amount. Therefore, I feel my schedule is perfectly reasonable... To each their own, however.

First I need to correct my typo... I meant to say that my formula makes about 1 gallon for around $6.00, not 2 gallons.
Please excuse U.S. measurements:

Lubricant: 1/2 gallon of diesel fuel: $1.40
Cleaning agent: 1 quart naphtha (I use charcoal lighter fluid due to higher viscosity): $2.00
Water removing agent: 1 pint isopropyl alcohol (as pure as possible. I use IsoHeet): $2.00

To get a more exact replica, you would have to mix these parts at a certain tempurature in order to get the right viscosity. However, after many failed attempts, I just have up on this as I found no real difference in performance.

I hope this helps!

 

ah, I was envisioning every 1-2 months

 

Thanks mate, it does. time for some shopping.

 

great stuff

vac lines is a def plus
in the gas tank its great stuff

you have to be careful adding it to the crank case, it will dilute the oil if you add to much thus putting excess wear on all your bearings and lets face it NOT A GOOD IDEA ON OUR MOTORS

not a good idea period

so if your a fan of putting it in the crank case to loosen up some sludge and clean the motor -- i am for sure once in a while

put 1/2 to 1/3 the can in the crank case 20-30 miles before you change the oil, run it ( for me thats to and from work ) then change the oil

ive had great results on all my other cars better gas mileage from hondas to bmws, less oil consumption on oil burning motors and better ( butt dyno ) feeling on the hsp and throttle response end of things