Hi again. I have heard on another forum that using Sea Foam in the pvc, crankcase and gas tank can greatly help restore your engine. But I also heard that you shouldn't do it to cars with 150,000 miles or more on them because it cleans grim off the piston rings which makes them leak oil and ruin your engine. My question is: Is this really true? Is there anyone in here who can testify from first hand experience the truth of this matter?

Thank you

 

its safe to use in all mileage cars the reason people say its not is cause seafoam will loosen and break down carbon deposits rapidly and say those deposits could potentially cause problems. use it and monitor the cleanliness of your oil as the seafoam will cause the oil to get dirty faster because of the carbon deposits that were removed

 

Used it in my 98 civic LX with d16y7 and 180k, no problems at all. I didn't notice much improvement but certainly no damage. I fed the motor the seafoam through the brake booster vac hose, put a shot in my oil and the rest into my gas tank.

 

Whomever spewed you that nonsense should be placed on your ignore list.
If the rings are carbon/sludge fouled they will not be able to properly seal the combustion chamber. Removing any carbon/sludge buildup from the rings will allow them to properly seal between the piston and cylinder wall. Unless the rings are damaged from detonation, or the cylinder wall has been washed down from a rich condition, the rings should be fine.

What seafoam will do for the engine when added to the fuel will remove varnish/carbon buildup. When added to the oil it will help break down and remove sludge and carbon buildup from the oil passages, great for unsticking a stubborn lifter/valve. Adding SeaFoam to the intake will clean any carbon/varnish buildup from the piston faces and back of the valves.

The only 'problem' you might encounter is if the engine was in dire need of a good cleaning some carbon or sludge may foul the spark plugs. You may have to check the spark plugs afterwards to make sure they are not coated in carbon junk.

Follow the instructions and you should be fine.

 

I found this out on this website. There are conflicting opinions about this I see; some say its bad for cars with over 150k, others say its not harmful at all and have used it with over 150k miles... You're probably right though it maybe just a misconception (its common).

Here is the site:

http://www.superhonda.com/tech/carbo...nt_how-to.html


It said:

1. First, Make sure to use the whole can.
2. You will be using this on two sides of the intake manifold.
3. It might be easier to work with the cleaner if you pour it into a small cup.
4. Perform this on a warm engine.
5. When revving the car make sure your in a well ventilated open area.
6. Do not use on motors with over 150k on them.


People were talking about it here:

http://www.superhonda.com/forum/f125...leaner-183518/

 

Safe to use!, or use your best judgement when determining how the 150k were accumulated i.e. highway miles vs. city etc.

 

Opinions are like arseholes, everyone has one, sometimes two...
The bottle of SeaFoam has instructions(not opinions) written on it, follow them and you will be fine.

FWIW, one of the neighbors owns a WRX. He has had the exhaust off in the past prior to Sea Foaming the engine. Typical carbon buildup on parts. Recently while trying to track down an exhaust leak we Sea Foamed the car, not so much as to clean the engine, but to utilize the smoke it creates as an identifier of where the leak was coming from. Pinpointed the leak, which required removal of same exhaust components. They were considerably cleaner and lacked the carbon buildup that was on them in the past.

My wifes car has suffered from a randomly sticking lifter, with the annoying ticking and clacking when cold. Put in the recommended amount of Sea Foam to oil ratio. It took about three days but the lifter no longer ticks or clacks.

Dumped a few ounces into the neighbors Blazer which seemed to recently be getting worse MPG. Seems to have picked up a couple of MPGs and the fuel pump no longer makes an annoying whizzing sound.