Great Mike, the start of another excellent 'How to'.
The mechanic I use gave me some 'Add-It Clear Grease' spray which he uses on exposed surface rust. Areas like trailing arms or suspension members that are meaty bits of metal that just have a corroded surface. It sprays realy thin and then starts to creep and get more viscous, but never fully dries. It has big temperature tollerences and seems to resist being worn off by water etc when driving.
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240 SE Auto 1991
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