Engine Oil

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The main difference between a synthetic oil and a synthetic blend is that the blend is made by mixing synthetic and conventional oil together, according to J.D. Power. This blend offers many of the benefits of a synthetic oil, but at a more affordable price.

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  • How do you fix an oil leak in a car?

    Q: How do you fix an oil leak in a car?

    A: To fix an oil leak in a car, find the source of the leak, check the oil pan gasket and repair the leak as appropriate. Fixing an oil leak in a car takes a minimum of an hour and requires a car jack, jack stands and wrenches. A stop leak additive may be necessary, depending on the cause of the leak.
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  • What are the difference between synthetic motor oil and synthetic blend?

    Q: What are the difference between synthetic motor oil and synthetic blend?

    A: The main difference between a synthetic oil and a synthetic blend is that the blend is made by mixing synthetic and conventional oil together, according to J.D. Power. This blend offers many of the benefits of a synthetic oil, but at a more affordable price.
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  • How can I switch to synthetic motor oil?

    Q: How can I switch to synthetic motor oil?

    A: Synthetic oil is not for old engines with their original seals, says HowStuffWorks. However, in modern engines, conventional oil can be switched with synthetic oil without any problem. The higher cost versus the benefit of synthetic oil is the only real consideration.
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  • How often do I need to replace the engine oil in my car?

    Q: How often do I need to replace the engine oil in my car?

    A: The time frame for replacing engine oil varies by car, but in general oil should be replaced every 5,000 to 7,500 miles, advises How Stuff Works. Various factors such as the type of vehicle and driving conditions make a difference, so the vehicle's user manual provides the most accurate instructions.
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  • Is an engine oil flush necessary?

    Q: Is an engine oil flush necessary?

    A: An engine oil flush is not absolutely necessary for most cars, but it is beneficial in instances in which there is a significant possibility of carbon deposit build up. When large amounts of carbon build up in the oil system, the car's oil cannot flow as intended, which leads to serious engine problems. If the oil is changed regularly, however, the gunk in the car's oil system usually does not have enough time to build up to a harmful level.
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  • How do I determine my car's engine oil capacities?

    Q: How do I determine my car's engine oil capacities?

    A: To determine your car's engine oil capacity, refer to the owner's manual, look on the manufacturer's website, search a specialty website, or use a dipstick to check oil levels, according to HowStuffWorks. Specialty websites offer users a reference for oil and fluid capacities based on year, model and make.
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  • What is high oil pressure?

    Q: What is high oil pressure?

    A: High oil pressure occurs when an unusually high amount of pressure is required to circulate oil through the engine of a car. Most cars have oil pressure gauges that show how much pressure is used to circulate the oil. After a car runs for approximately 20 minutes, the needle on the gauge should settle at the midpoint. If it settles toward the top of the gauge, this indicates high oil pressure.
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  • What happens if you overfill your oil tank?

    Q: What happens if you overfill your oil tank?

    A: Overfilling your oil tank results in less effective lubrication that may result in damage to your vehicle's engine. According to Car Talk, too much oil can make it difficult to properly lubricate key engine parts.
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  • What is the thickest motor oil?

    Q: What is the thickest motor oil?

    A: The thickest motor oil readily available on the market is 40W70. This oil is made for antique cars with diesel engines that burn oil excessively.
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  • What is the proper disposal method for used motor oil?

    Q: What is the proper disposal method for used motor oil?

    A: Used motor oil must be stored in a clean plastic container that has not been previously used for food, beverages or other chemicals to prepare it for recycling. It can then be taken to a service station or other drop-off point for recyclable materials.
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  • What happens if I put too much oil in my car?

    Q: What happens if I put too much oil in my car?

    A: If too much oil is put into a car, it starts to leak when the engine runs. This leakage is due to excess pressure generated by the oil pump and crankcase placing strain on the seal on the rear main bearing.
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  • How do you measure the oil in a tank?

    Q: How do you measure the oil in a tank?

    A: Measuring the amount of oil a car has in its tank is done by using the dipstick, which is always located somewhere under the vehicle's hood. The vehicle's Owner's Manual should contain a diagram of everything under the hood to help locate the dipstick's exact position.
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  • What causes high oil pressure?

    Q: What causes high oil pressure?

    A: High oil pressure is caused by an increase in the temperature of motor oil. Oil pressure is determined by the rate that oil flows through the internal combustion engine of a car. When oil pressure increases, the flow of oil decreases.
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  • Q: What are the signs that the oil level is low in an engine?

    A: A warning light on the dashboard of the car and low levels of oil on a dipstick reading are two of the most common ways of checking if an engine is low on oil. A warning light indicates there is a problem, while a dipstick is a guide that shows whether or not the oil is filled to the correct level. Strange engine noises as well as the color of the oil in the engine are two other signs of low oil.
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  • Q: How should you properly dispose of used oil?

    A: To properly dispose of used motor oil, transport the used oil in appropriate containers to a household hazardous waste facility, gas station, auto shop, or other waste collection site. Some collection sites may charge a small fee to dispose of the oil.
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  • Q: How do you look up a Carquest oil filter?

    A: To look up a Carquest oil filter, navigate to CarquestProfessionals.com, click on the Filter Lookup link under the Reference tab on the left side of the home page, and then choose a year, make, model, product and engine from the drop-down menus. Hit the Enter key to initiate the search.
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  • Q: When should you change the oil in your car?

    A: Oil change intervals vary widely by manufacturer and car model, ranging anywhere from 5,000 to 15,000 miles. The previous standard of an oil change every 3,000 miles is no longer applicable for most vehicles under normal driving conditions.
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  • How do you know what type of oil to put in your car?

    Q: How do you know what type of oil to put in your car?

    A: To know the type of oil to put in your car, refer to the owner's manual. The manual contains various oil viscosities and specific temperature conditions when such viscosities are ideal. An ideal oil should also be certified by American Petroleum Institute. If possible, use synthetic oils in extreme temperatures.
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  • Q: What is involved in a basic oil change?

    A: A basic oil change involves draining the existing oil, replacing the oil filter, sealing the drain plug and adding new oil. Vehicle owners may perform this task themselves or rely on automotive professionals, who often perform the same process for a small fee and may also include a free vehicle inspection or offer other services as part of their a package. The process may vary slightly between vehicles.
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  • Q: How many oil filters are sold in the United States each year?

    A: In the United States, about 425 million oil filters are sold each year as of 2015. People who change their own oil account for about half of these sales, while the rest go to automotive shops.
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  • Q: Where can the oil drain plug on a car be found?

    A: The oil drain plug on a car is located at the bottom of the oil pan, which is located at the bottom of the engine, states the Dummies website. Vehicle-specific schematics are available in the vehicle's owner's manual.
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