2009 Infiniti M45x

Full-Size Sedan Premium
Infiniti M45x 2009
16MPG Combined
1 Trim
← 2008 2009 2010 →
Updated February 27, 2026

Looking at the 2009 Infiniti M45x? This Full-Size Sedan offers 16 combined MPG and comes with 1 available configurations. We break down the specs, safety data, and how it compares to the competition.

2009 Infiniti M45x Specifications

SpecValue
Combined MPG16 combined MPG
City MPG14
Highway MPG20
Body StyleFull-Size Sedan
Fuel TypePremium
DriveAWD/4WD
Available Trims1

Annual Fuel Cost

Based on EPA estimates, the 2009 Infiniti M45x costs approximately $3,650 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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