2015 Audi A4 Fuel Economy

At 26 MPG combined, the 2015 Audi A4 ranks 14th of 20 compact cars EPA rated for 2015 — 2 MPG short of the 28 MPG median for that group. That places it in the lower third of its class. If annual mileage is high, the running-cost gap against a class-average rival compounds quickly.

EPA puts annual fuel spend at about $2,850, $200 more than the $2,650 typical for the class. Over five years at 15,000 miles a year that is roughly $14,250, a $1,000 difference against a class-median vehicle.

Across the 9 model years we hold for the Audi A4, the figure ranges from 26 MPG (2015) to 32 MPG (2021), so the 2015 car is best read against its own model history rather than in isolation.

Tailpipe CO₂ is 335 grams per mile. Over 15,000 miles that is about 5 metric tons a year, a figure EPA derives from the same test cycle as the MPG above rather than measuring separately.