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2018 Audi A5 2.0T quattro
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  • Newest year: 2018
  • Gas
  • Small cars

2018 Audi RS 5 MPG & Fuel Cost

1 configuration · 21 MPG combined

21 MPG
Combined
18 MPG
City
26 MPG
Highway
Annual fuel cost · RS 5 2.9L 6-cyl turbo AWD
$3,790

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Cheaper to fuel than 2 of 10 small car configurations, MY2018. Ranked against all rated configurations, not sales-weighted.

2018 Audi RS 5 at a glance

The 2018 Audi RS 5 has 1 configuration in the EPA database, rated 21 MPG combined. The most efficient is the RS 5 2.9L 6-cyl turbo AWD at 21 MPG, which costs about $3,790 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The RS 5 2.9L 6-cyl turbo AWD costs less to fuel than 2 of 10 small car configurations rated for MY2018 (class median $3,170 a year).

What the 2018 RS 5 2.9L 6-cyl turbo AWD costs to drive

Per month

$316

$3,790 a year ÷ 12

Per 25 miles

$6.32

Per 100 miles

$25.27

Five years

$18,950

5 × the yearly cost, prices held at today's level

vs the small car median

$620more a year

Class median $3,170 a year, MY2018

Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).

2018 Audi RS 5 MPG

Gas · 2.9L
Combined
21 MPG
Per year
$3,790

Gas configurations (1)

2018 Audi RS 5 gas configurations: EPA ratings and annual cost
TrimEngineDriveCityHwyComb.$/yr
RS 5 (Most efficient) 2.9L 6-cyl turbo AWD 18 26 21 $3,790

1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).

Fuel cost by state

Yearly cost of the RS 5 2.9L 6-cyl turbo AWD: $4,520 in California and $3,290 in Texas, a $1,230 difference.

Gasoline prices: California: California state average; Washington: Washington state average; New York: New York state average; Florida: Florida state average; Texas: Texas state average (Sep 2026).
Fuel cost in every state

Similar cars

Closest combined MPG among MY2018 small car models.

EPA ratings: fueleconomy.gov file of Sep 29, 2026 · Prices: EIA regular gasoline, U.S. average, Sep 2026 ($4.36/gal) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Generations

Frequently asked questions

How does the 2018 Audi RS 5 compare with the previous generation?

The previous generation (2013-2015 Audi RS 5) is rated 18 MPG combined and costs $4,360–$4,410 a year to fuel; the 2018 model is rated 21 MPG and costs $3,790 a year.

What gas mileage does the 2018 Audi RS 5 get?

EPA rates the 2018 Audi RS 5 at 21 MPG combined across 1 configuration. The most efficient, the RS 5 2.9L 6-cyl turbo AWD, is rated 21 MPG combined (18 city / 26 highway).

How much does it cost to fuel a 2018 Audi RS 5 per year?

Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the RS 5 2.9L 6-cyl turbo AWD costs about $3,790 a year. Across all 1 configuration the cost runs $3,790 a year.

How much does it cost to drive a 2018 Audi RS 5 100 miles?

About $25.27 per 100 miles for the RS 5 2.9L 6-cyl turbo AWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.

Is the 2018 Audi RS 5 more efficient in the city or on the highway?

The RS 5 2.9L 6-cyl turbo AWD is rated 18 city and 26 highway MPG, so it is more efficient on the highway, by 8 MPG.

How does the 2018 Audi RS 5 compare with other small car configurations?

The RS 5 2.9L 6-cyl turbo AWD costs about $3,790 a year to fuel, $620 more than the class median of $3,170, and less than 2 of 10 small car configurations. The comparison covers all 365 rated small car configurations for MY2018, not weighted by sales.