Myth Busted: Inflate tires to the pressure shown on the tire’s sidewall.

The pounds-per-square-inch figure on the side of the tire is the maximum pressure that the tire can safely hold, not the automaker’s recommended pressure, which provides the best balance of braking, handling, gas mileage, and ride comfort. That figure is usually found on a doorjamb sticker, in the glove box, or on the fuel-filler door. Perform a monthly pressure check when tires are cold or after the car has been parked for a few hours.

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Myth Busted:Engine oil should be changed every 3,000 miles.

Despite what oil companies and quick-lube shops often claim, it’s usually not necessary. Stick to the service intervals in your car’s owner’s manual. Under normal driving conditions, most vehicles are designed to go 7,500 miles or more between oil changes. Changing oil more often doesn’t hurt the engine, but it can cost you a lot of extra money. Automakers often recommend 3,000-mile intervals for severe driving conditions, such as constant stop-and-go driving, frequent trailer-towing, mountainous terrain, or dusty conditions.

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Photo Credit: consumerreports.org

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Myth Busted: Engine oil that’s turned black is no good

Photo Credit:  wikipedia


Engine oil that turns black is actually a sign that the oil is working. Modern engine oils contain detergent-dispersant additives that keep engine internal parts clean by removing carbon deposits and maintaining them in harmless suspension in the oil.

It is better to have the carbon deposits in the oil so they can be drained off than to have them left as deposits in the engine where they could do the most damage.

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