Mercruiser 3.0 vs 4.3 - fuel consumption / economy

MerCruiser 3.0 - 135 hp (US Gallons)

MerCruiser 4.3 - 190 hp (US Gallons)

MerCruiser 4.3 - 220 hp (US Gallons)

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MerCruiser 3.0 - 135 hp (Liters)

MerCruiser 4.3 - 190 hp (Liters)

MerCruiser 4.3 - 220 hp (Liters)