– Why can V6 engines not just get “smaller” for fuel efficiency vs going Turbo V4?

Question

I guess what about having extra pistons makes mpg worse vs. 1.8L, 2.5L, 3.5L, etc.?

In: 168

Answer 1

There are practical limitations on parts’ sizes, in order to be durable enough, heat resistant enough, ability to be worked on, etc. that make fewer larger cylinders more practical than more tiny ones.