small parts, for a quick degreasing, I'll use a coffee can, a splash of gasoline, and a brush.

Yes, gas is expensive,but it's cheaper than a gallon of paint thinner, mineral spirits, etc.


but purple power is also good stuff! I've taken a set of sludged abused heads that were sitting outside in a closed up engine for years, and the thing filled with water, mixed with the oil. it was like a milkshake inside. Soaked the heads in a 5 gallon bucket with purple power in it for a week. when I removed the heads, they looked like brand new fresh castings!! the paint, rust, grime, was gone