Question 1

What is good fuel efficiency?

Accepted Answer

Compact car: 30-40 MPG. Midsize: 25-35 MPG. SUV: 20-30 MPG. Truck: 15-25 MPG. Hybrid: 40-60 MPG. EV: 100-130 MPGe.

Question 2

How can I improve fuel efficiency?

Accepted Answer

Maintain tire pressure, remove excess weight, use cruise control, avoid rapid acceleration, reduce idling, keep engine tuned, and drive at moderate speeds (55-65 MPH optimal).

Question 3

Why does the US use MPG while others use L/100km?

Accepted Answer

MPG (higher = better) is intuitive for comparing. L/100km (lower = better) better shows fuel savings - halving consumption halves L/100km but doesn't double MPG.

Question 4

How does speed affect fuel economy?

Accepted Answer

Most vehicles are most efficient at 45-65 mph. Above 65 mph, every 5 mph increase is like paying an extra $0.20-0.30 per gallon.

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