Thread: Seafoam Works

i might have to try this

Yeah, I'm at 146k... The engine was rebuilt supposedly at 80k, but I'm not sure to what extent, nor do I have any documents proving it... So as far as I'm concerned, the motor still has 146k on it. All of my seals do look good though, with the exception of the lower oil pan having a drip.

Maybe I'll just run some through my fuel for the next three fills... I want to pull apart my intake and clean everything from the IM forward by hand..

I was always under the understanding though that seafoam wouldnt harm any seals being all natural etc. The website says so at least... Unlike some of the other harsher flush products out there..

Can someone give some more insight into seafoaming a high mileage motor(146k)??

I would love to clean it up, but don't want any unexpected leaks...

I followed "normal" protocol and put 1/3 can in fuel tank, 1/3 can into intake via vaccum line and 1/3 into motor oil..

changed motor oil in 750 miles

165,000 miles on the car at the time, no problems.

sometimes all that is sealing the old seals is carbon build up. seafoam is ment to deteriate the carbon build up.

I replaced the o2 sensor and the thermostat today. Thinking it was the thermostat sticking open that caused my car to run so rich and the o2 sensor being bad caused it to run rough.

If the thermostat was stuck open then the car would never get to full operating temperature and would always run rich which was/ could be the results of 280 miles per tank when I should be getting 320-360. So we will see.

You think your car did not get to full operating temp cause the thermostat was stuck?

SR's run hot to begin with, but I would bet it did nothing to cause your car run rich.

ok so it was running like shit and the thermostat I took off looked rough as hell. It also was hard to get to normal operating temperature and it has been like 25 degrees in my area and when I turned on the heat my operating temp would drop like a rock and go to cold side. It now stays rock solid in the middle and I have hot heat again. How would not having your car within normal operating temperature especially colder than normal not result in less fuel economy since the car idles higher and never gets into closed loop operation?

so please let me know if I missed something since people on here think I know nothing about cars and am the sr20 dash thread red headed step child.

You replaced the o2 sensor and the thermostat at the same you. You will never truly know and neither will I. How did you know you were rich?

You can test your thermostat by putting it in water and warming the water up to the temp where it should open at.

Since you said you live in a cold weather area, the fuel economy always drops a little bit, probably not as much as you experience, but a little because they (gasoline manufacturers) put oxygen in the car to promote easier cold weather starting.

And, lastly, for the love of god, stop being so weird and adding stupid, pointless remarks. Such as your last one....

"so please let me know if I missed something since people on here think I know nothing about cars and am the sr20 dash thread red headed step child."

Well, I am asking questions and give you some feedback, hence the ENTIRE point of a forum, my newly self-promoted red headed step child. Sorry if you don't like it, it is a legit opinion and since you changed two things at once, you can only test the thermostat you took out.