Oil Drain Plug Operation:
A threaded plug, usually on the lowest point of the oil pan, used to drain engine oil from the oil pan sump. The plug will have a soft sealing washer or o-ring to prevent seepage and drips, and some style plugs even contain a small magnet to catch loose metallic particles.
How To Instructions:
- Check for obvious problems.
- Out with the old, in with the new.