Question 1

How do I convert km/L to MPG?

Accepted Answer

MPG (US) = km/L × 2.352. MPG (UK) = km/L × 2.825. Example: 15 km/L = 35.3 MPG (US) or 42.4 MPG (UK).

Question 2

Why do some countries use km/L?

Accepted Answer

km/L is used in Japan, Brazil, India, and parts of Asia. Its a metric unit showing how far you can go on one liter. Higher km/L = better efficiency, similar concept to MPG.

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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