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You service your own vehicle, or maybe you don't have the time, but you reckon you have the ability. If this sounds like you, you're already way ahead of most drivers. You might, for instance, know the "coin trick" to Check this out if your tire's tread depth is too low; you slot a quarter in one of the treads and see how much of the coin is left showing. But do you know how much of the coin is too much? Is your automotive knowledge strictly mechanical, or are you a real know-it-all? Â When it comes to rules of the road, do you consider yourself an aficionado? If you encountered unbroken white lines in Washington state, for example, it's not prohibited to change lanes. But do you know under what conditions the Washington state driver guide recommends you cross an unbroken white line? Or maybe you know that State Highway 130 has the highest speed limit in the country. If you were already aware of the majority of the information mentioned, you might have what it takes to ace this quiz.

See if you're the person who should be called when there's an automotive dilemma, or if you're the one who should call someone else. Take this automotive quiz now! How many cylinders did a 1967 Shelby Mustang GT500 engine have? The 1967 Mustang GT500 was, of course, powered by a V8 engine. Would you expect anything else from the king of American muscle? The GT500's 7.0-liter V8 powerplant helped it get down a quarter-mile stretch of track in less than 15 seconds - not bad for a 52-year-old car. Do you know what device compensates for wheel speed differences on the driven axle? A differential allows two wheels to be driven at different speeds. For example, if you're turning left, the rear left tire won't need to rotate as much as the rear right tire. The differential allows this to happen. In what way is driving on an expressway different from driving on a normal street?

There are no trucks on an expressway. You need to think faster and drive more vigilantly. You're more inclined to break the speed limit. There are no trucks on a normal street. Everything happens at a more rapid pace once you go from a regular street to the expressway. So you need to think faster and drive with more caution. Generally speaking, HEVs achieve noticeably better fuel economy than their internal combustion engine counterparts. Toyota's Prius is arguably the most well-known HEV. Many cars illuminate the road ahead through the use of LEDs. What does "LED" stand for? LED lights are replacing conventional halogen light bulbs at an ever-increasing rate. This is hardly surprising considering that LEDs last considerably longer than halogen bulbs and use just a fraction of the energy to achieve the same level of brightness. Why do indicator lights sometimes blink faster than they should? Your indicator lights run on a set electrical resistance. When a bulb burns out, Prime Boosts the resistance changes.

This allows a stronger electrical current to go to the working bulbs which causes them to blink faster. In the automotive world, "PS" referrers to "Power Steering." Low-speed maneuvers without power steering certainly aren't any fun and will have you working up a sweat in no time! SUVs are one of the most popular classes of vehicle, but what does "SUV" stand for? The 1984 Jeep Cherokee (XJ) is considered by many to be the first modern-style SUV. Since its launch 35 years ago, the SUV has become one of the most popular vehicles in the automotive industry. If your engine has in incomplete combustion, solid carbon will form from unburnt fuel. This is what causes the black smoke you see coming out of some exhaust pipes. The vehicle is running lean. The engine is too hot. There's unused fuel in the exhaust system. It's normal for thin wispy white smoke to come out of a car's exhaust on a cold morning.

This is just the build up of condensation escaping through the exhaust system. If it's thick white smoke that persists, however, you should get your vehicle checked out by a mechanic. Which of the following could cause a tire to wear faster in the center than on the outside edges? If a vehicle's tire is wearing faster in the center than on the edges, there's a good chance the tire is overinflated. You should find the recommended PSI on the sticker in the doorjamb on the driver's side. This number is usually somewhere between 30-35 PSI. Which of the following instruments shows your engine's RPM? A tachometer usually shows your engine's RPM (revolutions per minute). The number you see is usually multiplied by 1,000. So, if you see a "3" on your tachometer, your crankshaft is making 3,000 full rotations per minute. A "bimmer" is a nickname for a BMW, and Click here BMW's 3-Series is the company's best-selling model. The 318i, specifically, is a BMW 3-Series with a 1.8-liter gasoline engine.