Answer:
False
Explanation:
Vast majority of automotive engine are mostly of the piston type, and not the rotary type engine that has long gone obsolete. The piston type engine has a longer life when compared to the rotary engine, and emission is less. The emission from the rotary engine was exacerbated by the fact that the lubricant was added with the fuel directly into the engine, whereas the piston type engine has a and separate channel for fuel and lubricant.
