Our general FAQ section provides clear answers to the most common automotive questions that apply to all vehicles, regardless of make or model. From understanding routine maintenance schedules and oil change intervals to learning about warning lights, smog checks, brakes, tires, and general car care tips, this category is designed to help every driver. Whether you’re new to car ownership or just want reliable advice, our general FAQs give you the knowledge to keep your vehicle safe, reliable, and road-ready.
Are all car oil drain plugs the same size? No. Oil drain plugs are not universal; sizes, thread pitches, materials, and sealing methods vary widely by make, model, engine, and even model year. Understanding which plug your vehicle uses—and its torque and washer requirements—prevents leaks, stripped threads, and costly repairs. Why oil drain plugs differ …
What Makes a V8 a HEMI A V8 is called a HEMI when its cylinder heads use a hemispherical (or near-hemispherical) combustion chamber with valves set at wide, opposing angles and a spark plug positioned near the center—features that improve airflow and combustion. While “HEMI” is a Chrysler trademark made famous by its V8s, the …
What Type of Brakes Do Trucks Have Most heavy-duty trucks use air brakes—pneumatic drum or disc systems—with spring-applied parking brakes and often supplemental engine or driveline retarders; lighter trucks (like pickups) typically use hydraulic brakes similar to passenger cars, and electric trucks add regenerative braking. Understanding which system a truck has depends on its size, …
How Much Does It Cost to Fix an ESC? Fixing an ESC typically ranges from $150 to $1,800+ for cars (Electronic Stability Control) depending on the failed part, and about $20 to $400 for hobby electronics like drones or e-skateboards (Electronic Speed Controller). In vehicles, common fixes include a wheel-speed sensor ($150–$350) or an ABS/ESC …
How a Car’s Brake System Works A car’s brakes translate your foot pressure into hydraulic pressure that clamps friction material against rotating parts, converting motion into heat to slow or stop the vehicle; modern systems boost your input, manage pressure electronically (ABS/ESC), and in hybrids/EVs blend friction braking with regenerative motor braking. This article explains …
What material is used for car body panels Most car body panels are made from coated steel, with aluminum widely used for hoods, doors, roofs, and trunk lids, plastic/composite materials for bumpers and some fenders, and niche use of carbon fiber or stainless steel on specific models; automakers mix materials to balance cost, weight, safety, …
How a Cam Increases Horsepower A performance camshaft increases horsepower by changing when and how far the engine’s valves open and close, improving cylinder filling and exhaust scavenging at higher rpm. By raising volumetric efficiency and moving the torque peak upward, a cam can add top-end power—but it often trades some low-rpm torque and idle …
How to Test PCV Valve Operation The quick way to test a PCV (Positive Crankcase Ventilation) system is to verify crankcase vacuum at hot idle, check for steady suction at the PCV hose, observe idle change when you briefly remove the oil cap or pinch the PCV hose, and (ideally) measure crankcase vacuum with a …
What size intake runner do I need? For most builds, size the runner by cross-sectional area to hit a target airspeed rather than chasing a specific diameter. As a quick answer: for naturally aspirated street engines, aim for a mean port velocity of roughly 240–280 ft/s near peak torque, which typically translates to an inside …
What Happened to the HowStuffWorks Podcast The HowStuffWorks podcasts didn’t disappear; they were acquired and rebranded. In 2018, iHeartMedia bought Stuff Media—the company that ran the HowStuffWorks podcast network—and the shows have since continued under the iHeartPodcast Network banner. The original, catch‑all “HowStuffWorks” podcast feed was discontinued years earlier, but flagship series like Stuff You …
How Often Should You Change the Oil in Your Car For most modern cars using synthetic oil, change the oil every 7,500–10,000 miles (12,000–16,000 km) or every 6–12 months, whichever comes first. Always follow your owner’s manual and any oil-life monitoring system in the vehicle, and use a shorter interval if you drive in “severe” …
Harley-Davidson Low Rider S vs. Low Rider ST: What’s the Difference? The Low Rider S is a stripped, performance-focused Softail with minimal bodywork; the Low Rider ST adds a frame-mounted FXRT-style fairing and lockable saddlebags for sport-touring use, making it taller and heavier but better on highways. Both share the same Softail chassis and Milwaukee-Eight …
How Much Does a Street Sweeper Charge per Hour? In 2025, hiring a truck-mounted street sweeper with an operator typically costs $130–$220 per hour in the United States, with big-city or high-demand work reaching $250–$300 and rural jobs sometimes coming in at $100–$140; most contractors enforce 3–4 hour minimums plus travel and disposal fees. Prices …
How Much Is the Club Car Carryall 710? Expect a new Club Car Carryall 710 to cost roughly $15,000–$23,000 in utility configuration and about $18,000–$26,000 for the street‑legal LSV version, with wide variation based on powertrain, cab packages, and dealer pricing. Club Car does not publish a fixed MSRP; most buyers receive dealer quotes that …
What Happens When an Exhaust Pressure Sensor Goes Bad When an exhaust pressure sensor fails, you’ll typically see a check engine light, reduced power or limp mode, poor acceleration, and problems with diesel particulate filter (DPF) regeneration; left unchecked, it can lead to turbo, EGR, and DPF damage. The sensor’s bad data misleads the engine …
When to Use Your Turn Signal: What the Law Expects and What Keeps You Safe Use your turn signal every time you change direction or lateral position: before turns, lane changes, merges, entering or exiting roundabouts, pulling away from or toward the curb, entering/exiting parking spaces or driveways, overtaking, and exiting the roadway—activating it early …
How Much Does a Turbo Increase Performance? In most real-world builds, a turbocharger can raise an engine’s peak horsepower by roughly 30–70% on pump fuel with a safe tune and supporting hardware; mild factory turbo setups often deliver 10–40% gains over a naturally aspirated equivalent, while well-engineered, high-octane or built-engine projects can exceed 100%. Torque …
How many kilometers should engine oil be changed Most modern cars using full synthetic oil need an oil change every 10,000–15,000 km or about 12 months, whichever comes first; if your vehicle has an oil-life monitor, follow its indicator. In severe conditions (frequent short trips, heavy traffic, extreme heat/cold, towing, dusty roads), change closer to …
What “205 55 R16” Means on a Tire It indicates a tire that’s 205 millimeters wide, with a sidewall height equal to 55% of that width, built with radial construction (R), designed to fit a 16‑inch wheel. In everyday terms: 205 = width (mm), 55 = aspect ratio (%), R = radial, 16 = rim …
Why do they call it a freeway? They call it a “freeway” because the road is free from at‑grade cross traffic and direct property access, allowing traffic to flow freely at higher speeds; the “free” refers to freedom of movement, not the absence of tolls. In U.S. planning and law—especially from mid‑20th‑century California—the term came …
When to Use an Electronic Locking Differential Use an electronic locking differential when you’re moving slowly in low-traction conditions where one wheel may lift or spin—such as rock steps, cross-axle ruts, mud, slick boat ramps, or straight-line snow climbs—and avoid using it on high-traction surfaces, at speed, or while making tight turns. An electronic locker …
What happens when a torque converter solenoid goes bad When a torque converter (TCC) solenoid fails, the transmission can’t properly lock or unlock the torque converter clutch, leading to symptoms such as shuddering at cruising speeds, high RPMs with poor fuel economy, stalling when stopping, overheating, a check-engine light, and sometimes limp mode. Left unresolved, …
Why nitrous oxide is illegal in cars In most places, nitrous oxide isn’t categorically illegal in cars, but its use on public roads is often restricted or banned because of safety, emissions, and anti-tampering rules; it’s typically permitted for off-road or track use, and several jurisdictions allow cars to carry a nitrous system only if …
Why Radiators Are No Longer Common—and Where They Still Thrive Radiators have not disappeared, but in many new buildings—especially in North America—they’ve been displaced by ducted HVAC systems and heat pumps that handle both heating and cooling. Radiators remain widespread in Europe and in older buildings globally, and cars still rely on radiators or similar …
What a Differential Does in a Car A car’s differential lets the left and right drive wheels rotate at different speeds while splitting engine or motor torque between them; this prevents tire scrub in turns, improves stability, and helps traction. In everyday driving, it’s the hidden gearbox that makes cornering smooth and efficient—and in performance …
What Is Suspension? A Beginner-Friendly Guide Suspension, in simple terms, means a temporary support or hold that prevents normal movement or activity. Depending on context, it can be the system that keeps a vehicle stable and comfortable, a mixture where solid particles float in a liquid, or a temporary ban or pause from school, work, …
The worst race crash in history The deadliest crash in motorsport history occurred at the 1955 24 Hours of Le Mans, where driver Pierre Levegh and at least 83 spectators were killed and around 120 people were injured. The catastrophe reshaped global attitudes to racing safety, prompting sweeping reforms in car design, circuit layout, and …
What were the Ford models in 1954? In the U.S. 1954 model year, Ford’s passenger-car lineup comprised the Mainline, Customline, and Crestline series—featuring sedans, the Victoria hardtop, Sunliner convertible, and the new Skyliner “glasstop”—plus three wagons (Ranch Wagon, Country Sedan, Country Squire), the Courier sedan delivery, and the second‑generation F‑Series trucks ranging from F‑100 to …
How to Make Your CO2 Car Go Faster To make a CO2 dragster faster: streamline the body to cut aerodynamic drag, reduce wheel and axle friction, minimize mass within the rules, ensure perfectly straight tracking, and deliver clean, leak-free thrust from the cartridge—while following safety and competition guidelines. Below, we unpack each factor with practical …
Does a Transmission Replacement Include a Torque Converter? Usually, yes for automatics: most remanufactured automatic transmissions are sold with a matched torque converter and require installing it to keep the warranty; used/salvage units and some in-house rebuilds may not include it, and manual or dual‑clutch transmissions don’t use a torque converter at all. Below is …