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Seafoam ?

Discussion in 'Early CJ5 and CJ6 Tech' started by haighfam, Aug 17, 2017.

  1. haighfam

    haighfam Member

    Any one using Seafoam in their gas as a top cylinder lubricant/ cleaner? Pros or cons? My F134 with 28,000 plus miles sat for several years. Put engine oil in the cylinders and turned it over about once a year. Had recent problem with sticky valves, but that seems to have resolved after running it. Leaving on a 1000 + mile trip next week, thought it might help.
     
  2. mickeykelley

    mickeykelley Well-Known Member

    I used it and can't definately tell oh ya it worked, but it did seem to run smoother. It convinced me enough that I'll run a can thru every year.
     
  3. Snouts out

    Snouts out Member

    I use Marvel Mystery Oil in my 64 CJ & 38 Ford standard,so far so good,no stuck valves!
     
  4. Glenn

    Glenn Kinda grumpy old man Staff Member

    I know for a fact that Seafoam does remove fuel deposits and such, and it can help with sticky tappets and such when used in oil. If your engine is not having issues you might not notice/probably won't notice any kind of improvement. I'm a hard sell when it comes to additives, but I'm sold on Seafoam and Stabil and highly recommend both, especially for anything that seas infrequent use.
     
  5. TIm E

    TIm E Aggressively average

    There is a guy on youtube who does a pretty interesting test on a clapped out Ford Ranger, seems fairly legit. He claims no affiliation with any of the additive companies he tests. Fairly entertaining videos, he does one where he makes a complete cylinder head out of JB Weld. I am with Glenn...very tough sell when it comes to "wrench in a can", but likely right that the worse off the engine is, the more you are likely to notice the effects.

     
  6. 58 willys

    58 willys Sponsor

    I have used both of these products over the years and they are pretty good
     
  7. Desertdave66

    Desertdave66 Member

    Going to try some in the 66. More a preventative measure for a 41 year old engine.
     
  8. mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Ran some Seafoam through my old Honda CB360 that was only running on one cylinder. Don't know if a valve was stuck or the carb was gummed up but it cleared it up.
     
  9. Glenn

    Glenn Kinda grumpy old man Staff Member

    The engine in my M43 sat for years before I bought it. Straight 6, 230 flathead Dodge. Supposedly it was a good engine, nope, not quite true! I should have rebuilt it while I had it out hanging on the engine hoist instead of just cleaning and painting it. Anyway got it running but definitely not happy with it. Sometimes it wouldn't idle worth a crap even with the carb and ignition good.

    Earlier this year it was just barely staying running while idling so I suspected sticky tappets. Took the oil fill cap off, poured 4 ounces of Seafoam in and before I could put the fill cap back on the engine started idling smooth, and it had never been that good before. It definitely made me a believer that day.
     
  10. haighfam

    haighfam Member

    I put the recommended 1 oz per quart in the oil, made a difference with some of the questionable engine noises. I have the recommended 1 oz per gallon in the fuel tank, going to see what it does. Will probably run a couple cans through the fuel while on my trip. I am a skeptic when it comes to "wrench / sealant/ anything additive" in a can, but I have used Seafoam in my Yukon XL 6.0L gas engine to clean the injectors with good success.
     
  11. Jrobz23

    Jrobz23 Member

    Stabil is a must up here for snowmobiles being stored all summer. That stuff is excellent.

    As for SeaFoam, I was gonna try some myself this fall, so report back when you're done :p
     
  12. sterlclan

    sterlclan Member 2024 Sponsor 2022 Sponsor

    Stabil sea foam and Lucas are the only additives worth buying imo
     
  13. Glenn

    Glenn Kinda grumpy old man Staff Member

    I haven't used Lucas, always thought it was a thinner STP, but might try some in the bad Dodge engine.
     
  14. Mr Plow

    Mr Plow Member

    Yep. Out of the blue my jeep started bucking real bad up the hill. Used sea foam and magically smoothed everything. So happy that it worked!
     
  15. TIm E

    TIm E Aggressively average

    I'd add one more...beer. Sometimes when it is a little rough, 12 oz added to "my tank" smooths things right out :beer:
     
    Desertdave66 likes this.
  16. SoCalNickG

    SoCalNickG Member 2023 Sponsor 2022 Sponsor

    Anyone have experience with SeaFoam in diesels? I drive a 2001 Dodge 2500 with Cummings and 307,000. It run's good but I think the injectors could use cleaning, it's been a while. The SeaFoam website shows a product for transmissions. anyone every try it?
     
  17. CJ51962

    CJ51962 Member

    Just went out and read the can of Seafoam in the shop. Says right on the label that it's good for diesel too.
     
  18. Dauntless1971

    Dauntless1971 Member

    I have had very good results using Lucas gas treatment. Cleaning up jets in motorcycles and small engines.
     
  19. Glenn

    Glenn Kinda grumpy old man Staff Member

    I use it in my '06 with the commonrail and higher pressure fuel system. They apparently catch more abuse and are supposedly more susceptible to leak down when shut off and it did seem to help with quicker starting. I don't know if it helped by cleaning or lubrication, or maybe a bit of both.