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Wrenching
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Wrenching

  • Group C build
    3

    Tofu Auto Works Is Building A Race Car That Never Existed From 3D Prints And Scraps And It's Incredibly Entertaining

    If you have suggestions for some lesser known builders, or even a build of your own, please feel free to drop them in the comments section for future posts.

    By Brad Brownell 4 hours ago Read More
  • Old tire with dry rot and visible cracks on the tread surface
    17

    Tire Dry Rot: What It Is, Why It Happens, And How To Stop It

    We all know tires are made from rubber, but did you know that rubber can rot like wood? Here's why tire dry rot happens and how to stop it in its tracks.

    By Alvin Reyes 2 days ago Read More
  • Damaged brake rotor with grooves
    21

    When To Resurface Brake Rotors – And When You Should Just Replace Them

    Are you hearing that dreaded squeal or feeling a vibration when braking? Here's how to know whether your rotors need replacing or can just be resurfaced.

    By B. L. Johnson 2 days ago Read More
  • A worried man looking at the engine of a dark car with the hood raised
    3

    The First Things To Check When Your Engine Is Hemorrhaging Horsepower

    If your car feels down on power, a trip to the garage might be in order, but checking these things before you go could save you a pile of cash.

    By Alvin Reyes 2 days ago Read More
  • Shell Helix 0W-40 and 0W-30 engine oils
    33

    No, European Cars Can't Use American Car Oil: Here's Why

    Oils are not all the same, and owners of European cars have to make sure they're using oil that meets European standards -- which differ from those in the U.S.

    By Kiran Menon 4 days ago Read More
  • Engine pistons from both sides, with flat head surface full of sludge deposits
    5

    Here's What Piston Skirts Are Actually Designed To Do

    Gearheads might be aware of piston skirts, but their exact function isn't always clear to those outside engineering. Here's the lowdown.

    By Rohaan Sakrani 5 days ago Read More
  • A motorcycle cylinder head bolt
    10

    How To Know When To Replace And When To Reuse Cylinder Head Bolts

    It's tempting to reuse cylinder head bolts, especially if they pass the eye test. But there are some kinds of bolts you should never, ever reuse.

    By Rohaan Sakrani 5 days ago Read More
  • 997 GT3 on track
    10

    Is A Built Porsche 911 GT3 A Better Car To Drive Than A GT3 RS For Way Less Money?

    To RS or not to RS, that's the real question.

    By Brad Brownell 5 days ago Read More
  • Paint protection film (PPF) being applied to car in a garage
    13

    The Pros And Cons Of Paint Protection Film

    If you're considering paint protection film (PPF) for your car, you'll need to know the advantages and disadvantages. What should you be looking out for?

    By B. L. Johnson 5 days ago Read More
  • A technician using an impact wrench to remove the lug nuts of a wheel
    16

    Why Some Wheels Have 4 Lugs While Others Have More

    You'll likely find plenty of cars with five or more lugs on their wheels. But a certain few smaller models have only four lugs, and it's for a good reason.

    By Alvin Reyes 5 days ago Read More
  • A mechanic wearing gloves and using a wrench to carry out repairs on a car's engine.
    13

    Do V8s Require More Maintenance Than V6s?

    V8s are bigger than V6s, so it may seem natural that they're going to need lots more maintenance. But the differences are less siginifcant than you might think.

    By Marko Mikulic 7 days ago Read More
  • Man checking his oil in cold weather
    12

    Why You Should Always Check Your Engine Oil Before Cold Weather

    Engine oil and cold weather don’t mix well. Here’s why viscosity matters, how cold affects oil flow, and how the right oil can protect your engine all winter.

    By Chloe Clougher 7 days ago Read More
  • Cutaway image of a four-stoke engine showing the pistons, connecting rods, and crankshaft
    7

    What Are The Four Strokes Of An Engine?

    You've probably heard of two- and four-stroke engines, but what are the four strokes of a gasoline engine? And how do they turn fuel into noise and speed?

    By Alvin Reyes 9 days ago Read More
  • Toyota 2JZ-GTE engine under the hood
    6

    Toyota 2JZ-GTE Vs Nissan RB26DETT: How Do These 6-Cylinder Blocks Compare?

    The snappily named Toyota 2JZ-GRE and Nissan RB26DETT are both idolized by enthusiasts, but how do the two Japanese six-cylinders stack up?

    By Rohaan Sakrani 9 days ago Read More
  • Ford pickup truck with a trailer on a snow-covered track
    7

    The Main Differences Between Pickup Truck And Car Engines

    Both the Ford F-150 and the Mustang have Coyote V8 engines, so they must be the same, right? Wrong. Truck and car engines are not created equal, and here's why.

    By Kiran Menon 9 days ago Read More
  • A 2026 Harley-Davidson CVO Street Glide ST and Road Glide ST on the open road
    18

    Here's What Swapping To A 2-Into-1 Exhaust Can Do For Harley-Davidson Performance

    2-into-1 exhaust kits attach to your cylinders to make your exhaust exit a single tube. But this type of exhaust isn't just used for style or sound.

    By Alvin Reyes 10 days ago Read More
  • The blue and white BMW logo on the hood of a black BMW.
    31

    BMW Has Patented A Way To Make DIY Car Repairs Much Harder

    BMW has patented a new screw or bolt design. It appears that this is nothing but a simple lockout on DIY repairs, and a way to keep money flowing to Munich.

    By Eugene Buono 10 days ago Read More
  • A hand wiping a blue car with a microfiber towel
    27

    Think Twice Before You Use A Microfiber Towel Again After Wiping A Ceramic Coating

    Microfiber towels and ceramic coatings are both terrific, but if you use that towel again on your coating, you're asking for trouble. Here's why.

    By Alvin Reyes 11 days ago Read More
  • A close-up of a car engine gearbox, showing gears, sprockets, cogwheels, and bearings from the automotive transmission.
    17

    What Causes Engine Knocking (And How Can You Prevent It)

    Engine knocking can be an annoying issue to deal with, and it can even cause damage to your car. Here's why it might happen, and how you can prevent it.

    By Rohaan Sakrani 11 days ago Read More
  • A 2027 Ram Power Wagon driving in the desert
    1

    2 Signs High-Mileage Diesel Owners Should Get On This Overlooked Maintenance Task

    Diesel engines are durable and capable, but it's easy to overlook one particular quirk regarding the intake manifold that should otherwise be regularly checked.

    By Chloe Clougher 12 days ago Read More
  • A diesel fuel nozzle refueling a truck outside.
    2

    Can Diesel Fuel Go Bad Over Time?

    If you have a diesel-powered vehicle that's been sitting unused for more than a few months, you might be wondering if its fuel has ended up going bad.

    By Kiran Menon 12 days ago Read More
  • The frame of a kit car being assembled by two people
    10

    The Nickel And Dime Parts That Can Blow Up Your Kit Car Budget 

    Building your own kit car can be a dream come true, but it can also be far more expensive than you realize. Here are some parts that might eat into your budget.

    By Benjamin Gracias 15 days ago Read More
  • A mechanic holding an old spark plug
    37

    Do Spark Plugs Need Anti-Seize Lubricant?

    Do you put a little anti-seize lubricant on your spark plugs before you torque them up? It's a widely used trick, but is it really necessary?

    By Alvin Reyes 15 days ago Read More
  • Jaron Nelson's turbocharged Ford 300 inline-six with a custom GM LS head and turbocharger in his 1935 Chevrolet
    6

    Yes, You Can Put LS Heads On A Ford 300 Inline-6, But It's Not Gonna Be Easy

    Putting LS heads on a Ford 300 inline-6 requires some machining and lots of custom parts. Still some hardy souls have gone ahead and done it.

    By Paul Stadden 16 days ago Read More
  • A closeup shot of ball bearings in a pile on a blue background
    7

    Ceramic Vs Steel Bearings: What's The Difference And Why It Matters

    Bearings can use steel or ceramic balls, but that begs the obvious question: which is better? Should you stick with conventional steel or more modern ceramic?

    By Rohaan Sakrani 17 days ago Read More
  • A DOHC car engine with 16 valves and variable valve timing
    11

    What's The Difference Between Single And Dual Overhead Cam Engines?

    Ever wondered what people are talking about when they say "dual overhead cam"? Don't worry, because we're here to explain it all with our handy guide.

    By Alvin Reyes 17 days ago Read More
  • Used oil being drained from an automobile
    11

    What Makes Engine Oil Turn Black?

    Although engine oil enters cars as a yellow liquid, you'll almost always find its color to be brown or black when it's being drained. Here's why.

    By Shane Schmid 17 days ago Read More
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