Rust Bullet

A bit less than a pint put one coat in my engine compartment.

I'm sure you were just saying what the coverage was but for others, the manufacturer states that you must use two coats of this stuff because of how it is designed to work. The first coat reacts with the moisture in the air and rust/metal. The first coat will remain porous after it dries due to the escaping moisture. The second coat, not having the underlying moisture will act as a sealer and fill the pores.