Most diesel truck owners pride themselves on the fact that their vehicle can tow and haul anything and everything they want yet still achieve 15 to 20 mpg on the highway. While that's true, we're here ...

One of the most popular drivetrain mods done to early Mustangs is to swap out the non-overdriven three- and four-speed transmissions with the later-model overdrive T-5 five-speed. Not only does the ...

To put your question into context, an overdrive gear is one where the output shaft of the gearbox spins faster than the input shaft. Or, put another way, a gear in which the car’s propeller-shaft is ...

Since the health of our planet became a major societal focus decades ago, automotive engineers have been on a mission to find a balance between performance and efficiency. In the past, the two ...

This week we’re starting a new series that takes a look back at some recent product introductions for specific categories and specs. After all, since most of you are busy enough trying to manage your ...

If you’re fond of spec’ing high-torque engines combined with direct-drive transmissions and fast axle ratios, you’re likely looking for fuel-economy gains. Compared to medium-power engines with ...