Seafoam, Great, Good, fair or poor in oil

[PalmHarborBlkv6]

Would like personal experiences for those of you with over 100K in their 3.8 using seafoam before an oil change and then driven for one hundred miles.

[ssms5411]

Re: Seafoam, Great, Good, fair or poor in oil

I used it a very long time ago in my oil, I would only do it if you think its sludge up anywhere. If you do regular oil changes I won't bother using it, just do the gas and Vac. line.

[Docta]

Re: Seafoam, Great, Good, fair or poor in oil

I did off and on for 50k miles or so, and when I tore down the motor I could smell it in the oil, even though it hadn't been ran through for a few months before. Probably two oil changes prior. If you want an oil additive, get one... BG is what I use now, if anything.

[2.8 Bird]

Re: Seafoam, Great, Good, fair or poor in oil

I would say good, but I went too much on the Vac. Just a little is good. It did smooth out my idling and improved my MPG slightly.

[WarShrike]

Re: Seafoam, Great, Good, fair or poor in oil

Don't really use it in the crankcase anymore. I did it a couple times to see if it would clear up my sticky lifter. It would help a little. It was so sludged up anyway before that rebuild that if any of that stuff had actually worked loose it would have plugged something, leading to a catastrophic failure.

Not my doing, previous owner skimped on oil changes. I ran synthetic and did consistent changes at the required intervals.

Top end looks brand new 40K miles after the rebuild. I replace the PCV valve every 3 oil changes or so and make sure I'm not getting a lot of oil crud pulled into the plenum.

I did an intake treatment with the seafoam spray and the vacuum setup about 12K miles ago. Runs like a champ.


What it looked like upon the tear down at 120,000 miles:

[enzia35]

Re: Seafoam, Great, Good, fair or poor in oil

I run it in the tank every couple months. It makes me feel better.

[Hib Halverson]

Re: Seafoam, Great, Good, fair or poor in oil

Seafoam is primarily, naptha, rubbing alcohol and light oil.

Would I put it in my engine oil then drive the car. No f'ing way. It lowers your oil pressure and that inhibits good lubrication.

If you're engine is badly sluged-up and you think it's going to fix that, it won't.

Would I put it in my gas? As long as its not used in high proportion, it can't hurt, but if the objective is to clean injectors, there are other products which are far better injector cleaners.

What Seafom has that's really good is its marketing.