The very small iron powder dust from crank, connecting rod metal, piston and ring are mixed in the engine oil. So we thought RRP Magnet Drain Plug would be able to collect those iron powder dust by changing the original drain plug, and also you can see the how your engine consumed by the collecting iron powder dust from the drain. Also using RRP Magnet Drain Plug, the life of oil will be longer with cleaning oil by this item.
The drain bolt of transmission for ZC32S does not have the magnet so we recommend this RRP Magnet Drain plug for your car.