The USA Today have published their review of the 2011 Hyundai Sonata. 'Sonata has a 2.4-liter four-banger with direct injection. That's a premium technology that boosts power and fuel economy by precisely metering gasoline into the cylinder at exactly the proper time. It replaces the previous method of injecting the fuel behind an intake valve, where it waits momentarily for the valve to open and allow it into the cylinder to mix with oxygen. Direct injection keeps the fuel cooler, and times its spray so that the fuel burns neither too soon nor too slowly. Sonata's engine is rated 198 or 200 hp (depending on model) in a field of rival fours typically sporting 170 to 190 hp.'
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