Do i have to worry about the clogging aspect of using seafoam if I only add it to the gas tank? I realize that I would if i decided to pour into the pcv hose but i just replaced my plugs last week and dont feel like doing it all over right now.

 

Using it in the gas tank is not nearly as harsh as pouring it straight into the engine.
It takes longer to clean that way but you run less risk of clogging a cat or O2 sensor.

 

thats good to hear. should i add more than what the can says. say....2 cans for 1 full tank?

 

A cheaper solution is to run higher concentration...1 can in 1/4 to 1/8th of a tank. I do this every 3rd or 4th oil change. Run it till the light comes on.

 

Run it until the "e" light comes on?

Has anyone seen significant increase in Gas Mileage from using Seafoam.

Also, has anyone tried to clean their 02 sensor after using it...i was going to, but cannot get to it because the bolts holding it into the exhaust pipe under the truck are corroded...anyone else have this problem? Anyone have a solution?

Would it be a good idea to replace a pcv valve after using seafoam...someone told me that it would be, but I dont quite see why.

Sorry, dont mean to hijack...but as long as we are on the topic of seafoam...

 

I don't see why either seeing as how it's just a check valve type thing. no clogging that I can see in a pcv valve. since they are only 2 bucks each though I keep 2 or 3 extras in my shop.

 

If the ball rattles, hit it with some carb cleaner and call it good.
No need to replace after treatments.

If you do run higher than recommended concentrations you may increase the risk of clogging.