435 posts · Joined 2008. #3 · Feb 13, 2013. Also, your mileage is staying the same becuase that number is based off of the average mpg over time. Since you started driving it, it is getting better mpg than the previous person (s). It will start to fall once you go under 1/2 a tank. '08 S5 Meteor Magma Monster. Since 2008.03.01. It even improved the fuel economy when driving normally. Here is a link to the 8P module, I've been in contact with the company and they can also provide a similar module for the 8V: Audi A3 (8P) 1.4 TFSI 1390cm3 92kW (125HV) 200Nm TehoBox - J-Pro: Lisää tehoa pienempi kulutus - Tuotteet The S5 costs £46,015 in standard form. However the adaptive suspension costs an extra £900, the Virtual Cockpit £250 and the rear sport differential another £1200. Both BMW and Mercedes-Benz Search for new & used Audi S5 8 cylinder cars for sale or order in Australia. Read Audi S5 8 cylinder car reviews and compare Audi S5 8 cylinder prices and features at carsales.com.au. I believe 91 is minimum recommended octane per manufacturer's direction, I believe it's stated in your gas tank door-cap as a reminder, I would go 91 or higher. Chances are the higher you go, the cleaner gas solution you will get which will keep your engine up running smooth. I recommend Sunoco 91 and 93. 09-16-2011 06:47 PM #9. Performance & mpg. Powering every 2013 Audi S5 is a supercharged 3.0-liter V6 that produces 333 horsepower and 325 pound-feet of torque. The coupe comes standard with a six-speed manual In addition, the V6 is vastly more fuel-efficient, beating the V8’s fuel economy by three mpg in the city and four mpg on the highway. the 2012 Audi S5 scores 4.3 out of 5 stars. Owners of Audi S5 Fastback 2010, 2011; What is the body type, Audi S5 Sportback (8T)? Fastback, 5 Doors, 5 Seats: What is the fuel economy, Audi S5 Sportback (8T) 3.0 TFSI V6 (333 Hp) quattro S tronic? 9.4 l/100 km 25.02 US mpg 30.05 UK mpg 10.64 km/l: How ECO is the car, Audi S5 3.0 TFSI V6 (333 Hp) quattro S tronic? 315 g/km CO 2 Euro 5 The V8 had an EPA fuel economy rating of 14 mpg in the city and 22 mpg on the highway, while the V6 gets 17 mpg in the city and 26 mpg on the highway cycle. Getting back to this 2013 Audi S5 The price of the 2020 Audi S5 Sportback starts at $52,895 and goes up to $61,295 depending on the trim and options. Premium. $52,895. Premium Plus. Fuel Economy and Real-World MPG. neia233.