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I agree with Chris, WD-40 sucks as a penetrating oil (want to be) or a long lasting lubricant. About the only thing it's good for is removing tar and bugs from auto/truck paint. If you want a really good penetrating oil (in the states at least), Kroil, Gibbs, Liquid Wrench, PB-Blaster are some of the better ones.
Tom (PK)
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