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Thread: What to use to lubricate plastic gear linkage parts?

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    confused What to use to lubricate plastic gear linkage parts?

    I've dismantled my centre console at the moment due to the airbag ECU needing replacing.

    While it's in bits, I want to lubricate the gear linkage/selection mechanism underneath the gear lever. It's made of white plastic and I can't find anything suitable.

    You can't use anything based on petroleum distillates on plastic unless you know the plastic is oil-resistant which I don't. That rules out pretty much all lubricants I've found including white lithium greae which was my first thought.

    Any ideas anyone?

  2. #2
    Ex Vec-C Admin ed taylor's Avatar
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    Vehicle : Vectra Estate

    Trim : Elite

    Engine : 3.2 V6

    Year : 04

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    What about a silicon based lubricant.

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    Quote Originally Posted by ed taylor View Post
    What about a silicon based lubricant.
    Ed,

    I've already got both a 3-in-one silicone lubricant and a 3-in-one white lithium grease spray (WD40 products) but neither say they are safe for use on plastic (just about everything else between them though ). I don't want to take a risk in case they damage the plastic as I don't even want to think how much that would cost to replace.

    After hours of searching, I've now found SG85 which definitely says it's OK to use on plastic (apparently it's not based on petroleum distillates which is probably the reason why it is OK as this is what can damage non-oil resistant plastics) and I'm going to pick some up later today.

    http://www.gt85.co.uk/products.htm

    http://www.machinemart.co.uk/shop/pr...ase-200ml-sg85

    Any thoughts on this?

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    Silicone is the "universal" lubricant - it's only downside is that final traces of it can never be removed so don't use it on components that need painting later - ie degreasing doesn't work on silicone.

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    Silicone grease - you can get it in Maplins (£3?). Great for rubber brake parts too!

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    Mine was done with vasaline to stop it rattling!!!

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    Thanks for the advice, everyone.

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