HYUNDAI ENGINE POOR MILEAGE

The Car Burns Too Much Fuel When The Tank Is Full I Have A Digital Display Fuel Guage And Every Quarter Of A Tank Is Supposed To Drive Me...

Have Changed Oil, Change, Plugs, Air Filter Change, Fuel Filter Change Still Consuming.

Hi Guys, I'm Currently Getting About 300 Km To A Tank Of Gas, About 60 Liters Of Fuel, Before I Need To Fill Up. It Is Pretty Hilly...