The 2008 Mitsubishi Eclipse gas mileage estimates fall in the mid to high twenties on the highway, as the sporty coupe competes with a diverse range of competition including the Chevy Cobalt, Pontiac G5, Ford Mustang, and Dodge Challenger.
Eclipse owners must decide between a four cylinder or V6 engine, depending on the model. The Eclipse GS is fitted with Mitsubishi’s 2.4 liter SOHC MIVEC inline four delivering 162 horsepower (HP) and 162 foot pounds of torque. The Eclipse GT is fitted with a 3.8 liter SOHC V6 providing a healthy 265 HP and 262 foot pounds of torque.

The four cylinder Eclipse GS is fitted with a 4-speed automatic or 5-speed manual transmission. The V6 Eclipse GT is fitted with 5-speed automatic or 6-speed manual transmission. The Eclipse GS is rated at 20 city / 28 highway miles per gallon (MPG) with the manual and 20/26 with the automatic. The Eclipse GT is rated at 16 city / 25 highway MPG with the manual and 16/24 with the automatic.
					
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