MotorTrend

Leak-Down and Compression Test

How to do a leak-down and compression test to determine an engine's condition

Related Videos

Ford's biggest three-row Expedition SUV isn't the newest vehicle in its segment, but it is still a solid choice thanks to its performance, comfort, and versatility. Here's what you need to know about the 2024 Ford Expedition.

1:41

2024 Ford Expedition Buyer's Guide Breakdown: Time-Tested Family Hauler

The guys turn a kit into a roller in this episode of BYOB.

9:27

Drift Rod

A fullsize truck for the street truck crowd. Ford has added a new trim package for the 2025 F-150: a Lobo variant that pays homage to street culture and will be on sale this fall.

2:16

2025 Ford F-150 Lobo First Look: Fullsize Sport Truck

The 2025 Ford Mustang GTD is stunningly easy to drive fast, a true cheat code for both road and racetrack. At 4,386 pounds, it outweighs the Mustang Dark Horse and Porsche 911 GT3 RS, yet feels planted, stable, and shockingly quick from behind the wheel. With 815 horsepower, 664 lb-ft of torque, custom Michelin Pilot Cup 2 R tires, and Brembo carbon-ceramic brakes, the GTD delivers relentless grip, massive stopping power, and confidence through every corner. It matches the GT3 RS on high-speed downforce turns and outperforms it in tight, low-speed corners thanks to its wide tires and advanced rear suspension. On the street, the GTD remains forgiving and composed, with adjustable suspension and active aerodynamics that make it livable. Inside, though, the $325,000 Mustang shows its weak spot — an interior closer to a $40,000 car. Still, Ford has already received far more applications than available build slots for this limited-production machine. Ford calls it “a supercar with the soul of a Mustang,” and the GTD proves it on track and on the road.

10:04

2025 Ford Mustang GTD First Drive : Big GTD Energy

The all new Ford Maverick Lobo draws inspiration directly from the lowered street trucks from the '80s and 2000s, but it's also packed full of performance hardware like bigger brakes, improved cooling, and a special drive mode. And it's actually more affordable than you'd think.

2:28

2025 Ford Maverick Lobo First Look: A Street Truck Straight From the Factory

Roadkill Nights 2025 took over Woodward Avenue in Pontiac, Michigan, with the wildest LEGAL street racing of the year! Watch the best Big Tire and Small Tire heads-up action as street-legal drag cars go all-out in eliminations for ultimate bragging rights.

8:22

Roadkill Nights 2025 | LEGAL Street Racing on Woodward Avenue (Big Tire & Small Tire)

Check out the great racing action at Atco Dragway from HOT ROD Drag Week Day 3.

5:49

HOT ROD Drag Week Day 3

Chevy's new Silverado EV electric pickup packs tons of technology and a massive battery rated for 440 miles. We take the Silverado EV for a first drive to see if it's good enough to put range concerns to rest.

4:06

2024 Chevrolet Silverado EV RST First Drive: Has EV Range Been Solved?

GM has teamed up with Cagnazzi Racing to convert HOT ROD Magazine’s famous ’57 Chevy to an EV. Since day one, X has redefined itself time and time again as a canvas to test the newest and hottest tech in the industry.

6:12

Project X Has Gone EV! Famed '57 Chevy Gets eCrate Power (Episode 1)

The new, 760 horsepower 2020 Mustang GT500 is Ford's most amazing Mustang yet, and can run sum 11-second quarter mile runs in bone stock form. Watch Mustang drag racing ace Evan Smith do just that.

3:04

2020 Ford Shelby Mustang GT500 Runs Sub 11-Second Quarter Mile!