added seafoam to gas tank

Bill1234

Bill1234

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I recently just added seafoam to my empty gas tank, then added gas. I have a somewhat low mileage 2004 car. (25,000). Would I feel an effect earlier or later or none at all? The oil was just recently changed, but was changed a bit late.
 
No you are not going to feel anything with SeaFoam, ever. I use it in my Corvette to stabilize gas, keep the motor running clean since I dont drive it often. If you want to notice something, try cleaning the throttle body, it might give you a bit better MPG.
 
What is wrong with the car. With 25k miles don't know if you would feel anything
 
There is loud idiling when stopped and the engine had never been cleaned before. Wanted to gain back what I had lost
 
You will get more out of seafoam by running it through your intake.
 
You might notice a little better fuel economy ...
 
I noticed my engine smoothed out a bit after I used SF through the intake, but it had over 100k miles at the time. At 25k (and using it through the gas tank) I'm not sure you'd even notice any difference.
 
Agree that you should run it through the intake. Usually a vacuum line off the master brake cylinder.

A lot of smoke but clears out fast. I usually will do 1/3 in tank, 1/3 in oil, and the last 1/3 in the intake.


Once you do the intake you will need an oil change to clean out the carbon that was deposited in the oil.
 
I added Seafoam to my 200k+ Audi but I put it in the gas, oil and the intake and let it smoke. you have too change your oil and plugs after running it in our oil for about 1 hour dont make the mistake of thinking it will work better if I just left it in...it will really thicken up and screw up your engine...I left enough smoke like I had a Division of Abram's M1's invading Iraq behind me and didnt want the enemy to see whats coming..
 
as others have said, you wont get anything out of putting it in the gas. Other than slightly cleaner injectors (maybe), and some fuel stabilization.

If your car is turbo (noticed its an audi a6). You may get some benefit of adding to the oil or through the manifold to burn off any sludging that could possibly have happened in that 25k miles, which i doubt is very much.

For the bottom end, you'd probably reap similar benefits from using a motor oil with a lot of cleaners (pennzoil platinum or ultimate) for a few oil changes, its been pretty well documented on bobistheoilguy.com forums that it cleans up internals pretty nice.

I'd wait till about 50 or 60k to do it on the top end, then change your plugs etc as a 60k service.

I thought i had the lowes mileage 04 around with 31,000... looks like you win.
 
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