FuelFacts

2006 Mitsubishi Galant MPG & Specs — Real-World vs EPA, All Trims

It depends on the trim. Some versions take premium and some take regular — check your exact engine/transmission below.

19–23
MPG combined (16–20 city / 25–27 hwy)
$2,478–$3,695
est. fuel / year (today's prices, 15k mi)
Varies by trim
gas type

Is the 2006 Mitsubishi Galant good on gas?

At up to 23 MPG combined, the 2006 Mitsubishi Galant is about average for a Midsize Cars — that class averages about 23.0 MPG across 5,710 EPA-tested versions, so it's middle-of-the-road for its size.

Real-world MPG vs the EPA number

The EPA figures above come from a standardized dynamometer test, not the open road — real-world MPG typically runs a bit lower depending on your driving, climate and terrain. That's true of every car on this site, old or new.

This 2006 model was originally EPA-tested under the pre-2008 2-cycle method, which didn't account for highway speeds over 60 mph, air-conditioner use, or cold starts. When EPA overhauled the test for model year 2008, city ratings fell by about 12% and highway by about 8% on average industry-wide — and EPA retroactively adjusted every 1984-2007 rating to the stricter standard so old and new cars could be compared fairly. The MPG above is already on that modern scale — the window sticker on this car when it was new likely showed a higher, pre-2008-method number.

At today's AAA national average price — $3.80/gal for regular gas as of 2026-07-05 — the most efficient trim runs about $2,478/year (roughly $206/month, about $16.52 per 100 miles) at the EPA's assumed 15,000 miles/year, using an estimated 652 gallons a year. We don't estimate a cost-per-fill since exact tank size isn't in the public EPA dataset, but the per-100-mile figure scales to any tank. Current national average gas prices →

2006 Mitsubishi Galant trims & fuel economy

Trim (engine / transmission)FuelMPGFuel/yr (today's price)
2.4L 4-cyl, Automatic 4-spd, FWDREGULAR23$2,478
3.8L 6-cyl, S4 automatic, FWDPREMIUM19$3,695
Where the EPA lists premium, that’s the fuel the maker specified for the mileage test — many such engines run on regular with slightly less power/MPG. Whether premium is required or just recommended is an owner’s-manual detail the EPA dataset omits, so we don’t guess it.

2006 Mitsubishi Galant specs

What the EPA test-car listings record for this model year — every combination sold is a row in the trims table above.

Engine options2.4L 4-cyl · 3.8L 6-cyl
TransmissionAutomatic 4-spd · S4 automatic
Drive typeFWD
EPA body classMidsize Cars
FuelVaries by trim

Other years of the Mitsubishi Galant

2010 Mitsubishi Galant2009 Mitsubishi Galant2008 Mitsubishi Galant2007 Mitsubishi Galant2005 Mitsubishi Galant2004 Mitsubishi Galant2003 Mitsubishi Galant2002 Mitsubishi Galant

Similar cars (Midsize Cars)

2006 Mercedes-Benz E320 Cdi2006 Kia Optima (2006 New Model)2006 Chrysler Sebring 4 Door2006 Dodge Stratus 4 Door2006 Lexus GS 300/GS 4302006 Saab 9-5

Cars that take premium · Cheapest cars to fuel · Where fuel grade depends on the trim · Fuel guides

2 trim(s) · EPA FuelEconomy.gov data retrieved 2026-07-24 · fuel prices AAA national average as of 2026-07-05.