Best Penetrating Oil???

Discussion in 'The Okie Corral' started by Jake514, Jan 3, 2010.

  1. Jake514

    Jake514

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    Motorhead advice neded:
    I need to change the original spark plugs in my car after 115k miles. I am told after this many miles the plugs are often stuck fast and will wreck the threads in the aluminum head upon removing the plugs. Is WD-40 as good as anything to loosen stuck plugs or is there any better penetrating oil available?

    I will be using an anti-seize thread protector coating when I reinstall the new plugs.

    Thanks in advance.
     
  2. dreis454

    dreis454

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    Royal Purple makes the best one..........MAXFILM!
     

  3. Russ in PA

    Russ in PA

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    Kroil, the oil that creeps. Good stuff.
     
  4. epoxy252

    epoxy252

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    PBBLASTER is also some good stuff smells horrible though
     
  5. FullClip

    FullClip NRA Benefactor CLM

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    PB Blaster has the stuff that's gotten me out of a jam for a long time, every time!:supergrin:
     
  6. metro273

    metro273 Glock 19 Rocks!

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    PB Blaster is all that we use at Nissan! :wavey:
     
  7. deputy tom

    deputy tom

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    WD40 is not a penetrating oil it is Water Displacer 40 th formula.P B Blaster is a good choice for a penetrating oil.tom.:cool:
     
  8. FLIPPER 348

    FLIPPER 348 Bigfoot enthusiast enthusiast

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  9. Diesel_Bomber

    Diesel_Bomber

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    Kroil is good. I get good service mixing ATF 50/50 with kerosene/paint thinner/mineral spirits.

    Make sure whatever you use stays where it needs to be. If you can't puddle the stuff around your plugs, tear rags or even gun cleaning patches into strips and wrap them around the plugs so that your chosen solvent always has a fresh supply as it soaks into the threads.
     
  10. KILLERtj

    KILLERtj F.I.B.

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    Kroil is great, but a lil expensive for an automotive application.

    PB Blaster is what I use to loosen any rusty fasteners. Stuff works like a dream.

    KILLERtj
     
  11. RonS

    RonS Millennium Member

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    Kroil. You can order it from Midway, they sell it as a bore cleaner.
     
  12. whitetiger7653

    whitetiger7653 NRA Life Member

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  13. HarlDane

    HarlDane

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    I use PB Blaster as well, it works great.
     
  14. Entelodont

    Entelodont

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    Another vote for PB Blaster. After spraying it on tap gently on the outside of the lug nuts and wait a few minutes before removing them.
     
  15. CitizenOfDreams

    CitizenOfDreams

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    Try a wrench first, the plugs may just come out without a problem.

    If you do have to use penetrating oil, Kroil is my personal choice.

    Don't forget to blow the dirt out of the wells first, so it won't fall down into the cylinders.
     
  16. harleyfx69

    harleyfx69

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    youve seriously gone 115,000 miles without changing your spark plugs ?

    and how do you know its even aluminum ?

    dont sound like much of a car guy,

    probably should pay to have shop do it
     
  17. GroundedCLK

    GroundedCLK

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    PB Blaster, I used it to stip down my 1973 Nissan 240Z, 1962 Impala and my 1978 Mustang.
     
  18. 8-Ball

    8-Ball Old Soul

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    Step down from your pedestal, it's a whole different world down here! :wavey:

    OP - There has been plenty of good penetrating oils listed here. Any one should work.
     
  19. Geeorge

    Geeorge Sarcasm Inc.

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    I've always liked CRC products myself and they have never let me down.

    I'd try taking one out with a 3/8 ratchet first,if they won't break loose use the crc.
    A 3/8 ratchet shouldn't snap the plugs so you ought to be safe,:wavey:
     
  20. TenMillimeter

    TenMillimeter

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    Yep, 1st choice: Kroil (if you can find it locally)
    2nd choice: PB Blaster (easily found)

    Don't believe everything you read on labels. About the only thing WD40 is good for is displacing water and cleaning. It's a pee poor lubricant and an almost worthless penetrating oil. Some people even believe that ArmorAll protects stuff, when it actually shortens the life of what it is applied to. 303 actually protects. Funny how the good stuff can be hard to find.