I wash my car every 5 days or weekly at the worst. With that frequency, you cannot to do major engine washes. So I prefer wiping it. To ensure it does not gather much dust, especially during the dry/hot season, I got an engine cleaner by Shield. Advantages of this product:
1. It's got a spray on & rinse off formula
2. It leaves no greasy residue
3. It does not degrade the rubber or plastic card parts
4. It is solvent free.
