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They are plastic today because earlier they were steel and rusted. Thus the “rustproof undercoating” which some dealers offered. A mechanic said my 1990 Honda C
by mperham 4y ago
They are plastic today because earlier they were steel and rusted. Thus the “rustproof undercoating” which some dealers offered. A mechanic said my 1990 Honda CRX was mostly rust after 6 years in the Northeast US.
- marginalia_nu 4y agoRust is an entirely different process though. You can mitigate it with sacrificial anodes, for example (that's how steel ships survive bobbing around in salt water).