In a four-stroke engine, what are the four strokes in order?

The four strokes in order are: INTAKE (piston moves down, drawing in air/fuel), COMPRESSION (piston moves up, compressing the mixture), POWER (spark ignites the mixture, forcing the piston down — this produces power), and EXHAUST (piston moves up, pushing out burned gases). ASVAB Auto Information tests engine operation. A memory aid is 'Suck, Squeeze, Bang, Blow' (intake, compression, power, exhaust). This four-stroke cycle is fundamental to how gasoline engines work and is commonly tested.