Seafoam, yes or no and when?

[phenomic]

I am gonna be changing my oil in about 500 miles for the winter on my lt1 97 camaro with 113k miles. I got the car a few months ago and it is my 2nd time doing it. The car runs great but i have done a tuneup of just about everything. I got some seafoam and put it in my fuel tank and intake and it did a great job (Made a lot of difference in acceleration).

I am gonna be switching to 5w30 druablend and i was just thinking if it would be wise to put this stuff in with the oil like it says? It seems to bea great product and ive heard good and bad things about it. I'd like to make sure everything is clean so what do you guys recommend and also, should i use it now with about 500 miles left or should i put it in a day or two before the oil change?

 

[SteveD2]

You should put it in right before you change your oil and let it idle for a little while just as the bottle says. Don't use it any longer than that, it will only evaporate and thin out your oil.

 

[DNS]

Well, if you want to dilote your oil, I guess it's fine to use. I certainly wouldn't put seafoam in my crankcase. If you are concerned about engine deposits, try AutoRX. If you don't want to use autoRX then you might consider using one of the engine flushes that are only left in the engine for about 15 minutes of easy running.

 

[phenomic]

I think the bottle on the seafoam says put half a bottle in the crankcase 500 miles before a change. Do you know approx how much the autoRX costs?

 

[MONKEYMAN]

http://www.auto-rx.com/cart/order.htm

 

[JonS]

I've used it in my inboard boat engine (302 v-8) and in my 4.0 liter Jeep. It does not thin out the oil. My pressures stayed the same as before. I kept it in there for 2000 miles. I think it was good for the engine. The instructions say it is safe in the oil and gas. You hav nothing to worry about.

 

[Schmoe]

Seafoam works best when you can get it into your intake manifold while running. On a F150, a lot of us take of the vacuum hose from the power brake box and put the hose in the can and let it get sucked into the engine slowly, then shut the engine off and wait about 15 minutes, then crank back up and floor it. The engine has to warm first. I think it's a combination of thermal shock and the solvents in Seafoam. It breaks carbon deposits loose. I've only known a few people to put it in their crankcase, but a know a lot that put it in their gas tank ever so often.

 

[phenomic]

I did do the brake booster and gas tank together at once. It made a huge difference and it was fun smoking up my neighborhood for 5 minutes after i loaded it. It made my exhaust louder and car feel ton more responsive.