Jeep's 545RFE automatic transmission had two second gears with different ratios. One of the "second gears" was for shifting ...

In our tests, we've found that in some cars a manual transmission can improve gas mileage by a significant 2 to 5 mpg, ...

The Mazda CX-5 you’re looking at here is new, believe it or not. Yes, the design looks a lot like the old one, but that isn’t a bad thing. Even the powertrain is the same as before, right down to the ...

In 2006, Harley-Davidson (H-D) made one of its most pivotal mechanical updates in years. It was a shift (pun intended) that saw H-D move from a five-speed to a six-speed transmission, introduced with ...