Base front-wheel-drive versions of the 2012 Acura TL get a reasonably good 20 mpg city, 29 highway; but those with the somewhat larger 3.7-liter engine and all-wheel drive aren't nearly as frugal or efficient. With the automatic transmission, models with SH-AWD get 18 mpg city, 26 highway, and with the six-speed manual gearbox it's rated at just 17/25.
Those ratings might be slightly on the pessimistic side, if several real-world drives with our editorial team are representative. For instance, we averaged nearly 23 mpg in about 400 miles of cold-weather driving—about two-thirds of it on the highway, but most of it taking advantage of the TL's strong acceleration. That's better than many other V-6 sedans with all-wheel drive.