When paired with the Paccar TX-12 automated manual transmission, the PX-9 diesel engine PX-9 engine produces up to 1,250 lbs.-ft. of torque with a maximum gross combination weight rating (GCWR ...

My expertise in automated manual transmissions (AMTs) and dual-clutch transmissions (DCTs) comes from many years of experience in researching and writing about these transmissions for a wide ...

In our tests, we've found that in some cars a manual transmission can improve gas mileage by a significant 2 to 5 mpg, compared with an automatic, and can cut a car's price by $800 to $1,200.

Many automatic transmissions are sealed or can be checked only by a mechanic. Always refer to your car’s owner’s manual for the proper service intervals.

A manual transmission is one with a stick for shifting gears and a third pedal for operating a clutch. Many automatic transmissions now enable manual shifting, and one style is even known as an ...