Anonymous asked in Cars & TransportationMaintenance & Repairs · 1 decade ago

Why do my feeler guages have oil on them?

3 Answers

  • 1 decade ago
    Best Answer

    Standard feeler gages are made of rolled steel not stainless steel. They'd corrode and rust without a protective coating.

    On the surface you'd think it would be better to make feeler gages from stainless. Contrary to belief stainless is much softer but *tougher (stretching, work-hardening and machining) than steel. If you were to use stainless shim stock it would become inaccurate as far as thickness in no time.

    Source(s): Alignment, suspension and brake shop.
  • 1 decade ago

    didnt clean them really oil is good like everyone said before doesnt rust up with oil

  • 1 decade ago

    to keep um from rusting when they rust they get thicker/thiner so when that happens it will throw off your measurment

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