Changing your vehicle's transmission fluid is vital for it to perform at its best. If you want to skip a trip to the mechanic, here's how to do it yourself.

If you are on a highway in sixth gear and want to skip fifth to get to fourth gear to pass a slow car up ahead, you'll need to rev match — a skill many manual drivers want to learn.

Before changing the transmission fluid, you'll need a few tools. First, unless you drive a tall pickup truck or SUV, you'll need something to raise your car off the ground. If you don't have a ...