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  1. #1
    Doo It Till It Hurts! holdnon72's Avatar
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    Is It Ok To Use Dielectric Grease on Electrical Engine Connections?

    I have applied a (small) amount of dielectric grease on all of my wire connectors on my engine and in the helm but a friend told me the dielectric grease is not good to use because it does not coduct electricity and could acually cut down on the flow of electric in the connectors. He said it's used after the connectors have been mated together not before they are mated together. Anybody else use the Dielectric grease without any problems? I use my boat in slat water so I wanted to have some extra protection of all my electrical connections. Will I be ok using it? Thanks for any info...


  2. #2
    One day at a time..... N8R's Avatar
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    i use it.. salt rider here

  3. #3
    Matthew K ReDevilRXP's Avatar
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    I might be wrong but that sounds like a load of crap. I use it on all of my electrical connections in my car and ski havnt had any problems yet. I use it on all plugs and wire in my cars to. I've had coils corrode on me left and right little dielectric grease problem solved.

  4. #4
    Island Hopper TM1's Avatar
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    I buy silicone spray by the case and spray the entire engine, all hoses and rubber pieces, jet pump, impeller, shaft, reverse bucket and wiring liberally after I've rinsed the salt water off (after every use), the silicone spray will also help the rubber seals around the storage compartments last longer. It's all I use and I've never had corrosion issues, besides the sacrificial zinc anodes which are intended to corrode.

    One can is usually good for 2-3 outings.

  5. #5
    jimboman's Avatar
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    Quote Originally Posted by ReDevilRXP View Post
    I might be wrong but that sounds like a load of crap. I use it on all of my electrical connections in my car and ski havnt had any problems yet. I use it on all plugs and wire in my cars to. I've had coils corrode on me left and right little dielectric grease problem solved.
    'Zactly.

    Dieletric grease won't prevent metal on metal connections, as in the electrical connections used here - but will stand to create a semi-waterproof seal for them.

    Any suspicion that dieletric grease increases resistance is inaccurate in this context.

  6. #6
    AKA: Larry lafjax's Avatar
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    Absolutly use it...everything I unplug I put d-grease on it before plugging back in. The only exception is the mem connections. They are so sensitive to resistance that d-grease is not recommended on those plugs. I also installed a 12 volt outlet for gps and depth finder and I use d-grease on all those fittings and couplings.

  7. #7
    Doo It Till It Hurts! holdnon72's Avatar
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    Thanks for all the replys

    What do you meen by the (MEM) connectors?

    Thanks for all the info...

  8. #8
    Hydrotoys's Avatar
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    Quote Originally Posted by holdnon72 View Post
    I have applied a (small) amount of dielectric grease on all of my wire connectors on my engine and in the helm but a friend told me the dielectric grease is not good to use because it does not coduct electricity and could acually cut down on the flow of electric in the connectors. He said it's used after the connectors have been mated together not before they are mated together. Anybody else use the Dielectric grease without any problems? I use my boat in slat water so I wanted to have some extra protection of all my electrical connections. Will I be ok using it? Thanks for any info...

    Just smile at your friend and nod your head a lot.

    Dielectric grease has saved my butt a bunch in salt water. I use it on all the connectors, and so does the manufacturers.

  9. #9
    I used it on ECU,MPEM and everything else no problems here.

  10. #10
    Moderator The Bandit's Avatar
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    Grease and silicone spray here...Brilliant!

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