Spotted today: 2013 3.0 TFSI
11-09-2012, 07:30 AM
#22
AudiWorld Super User
I did a quick and dirty conversion of the Canadian l/100 km figures to gal./mil for both the 2.0 and the 3.0 models. Then, I did a comparative ratio with the known factors to calculate the figures for the EPA ratings. I came up with 18.4/25.8. I'm sure those will be rounded down to 18/25.
11-09-2012, 11:22 AM
#23
While both are basically the same 3.0 engine the Q5 application is detuned to lower HP and Torque. Could this lead to it having better gas mileage?
11-09-2012, 12:12 PM
#24
AudiWorld Super User
No, just because one iteration of the engine is capable of generating more peak power than the other, required HP in order to sustain cruising speed is a function of weight, aerodynamics, gearing and rolling resistance. That's why people who have an ECU "tune" (eg Stasis, Apr) report no change in fuel economy, all things being equal.
11-10-2012, 09:18 AM
#26
AudiWorld Super User
11-10-2012, 06:36 PM
#27
No, just because one iteration of the engine is capable of generating more peak power than the other, required HP in order to sustain cruising speed is a function of weight, aerodynamics, gearing and rolling resistance. That's why people who have an ECU "tune" (eg Stasis, Apr) report no change in fuel economy, all things being equal.
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