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Automotive dictionary (encyklopedia)

Dictionary of terms and abbreviations for cars (automobiles), motorcycles (bikes),
bicycles, boats, engines, machines, machining and car fixing.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Octane number

Every brand of gasoline has an octane rating or number which indicates its ability to resist knocking. When the numbers were first developed, the researchers found that normal heptane (a hydrocarbon) had almost no ability to resist knocking so they gave it an octane number of zero. Then they found that isooctane (also a hydrocarbon) was very resistant to knocking so they gave it the octane number of 100. To measure a particular sample of gasoline they discovered when it began to create detonation. Then they mixed isooctane to heptane to find out what percentage of isooctane created the same results as the sample of gasoline. In United States, there are two methods for determining the octane number depending upon operating conditions. The Research Octane Number (RON) is obtained when conditions are somewhat mild. The Motor Octane Number (MON) is obtained when conditions are somewhat severe and give a much lower number than the RON. The numbers on the gasoline pumps are usually an average of the RON and MON. Usually the pump number is about four numbers less than the RON. Thus if the automobile manufacturer recommends using gasoline with a RON of 91 or more, it would be acceptable to use pump gas rating of 87. The pump number is the anti-knock index which is half the sum of the RON and the MON. See motor octane number, research octane number
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Car Insurance Quotes Online Saves Time and Money

With internet services, the car insurance market takes a giant leap into serving you faster and selling premiums in a jiffy. All insurance companies have websites I should guess. Checking insurance companies’ track records and customer reviews will be a lot easier and excluding the bad apples from the good ones easier now.

Comparing car insurance policies is also convenient with the use of the internet as well. Insurance rates can be checked via insurance company websites or hosts that cater insurance rates and quotes comparison for your convenience. And purchase insurance on the same website too. These websites are known to be licensed independent insurance agency; they operate by having accredited insurance companies quotes available for you to compare rates and quotes. They can help you narrow your choices of insurance company to choose from.

Independent agencies that offer these services can be operated by insurance brokers or agents so be careful in using such services because they might just be scheming for you to take their insurance premium instead of purchasing the most appropriate car insurance for you. However using the insurance official websites or insurance brokers’ websites to get your car insurance quotes is not that bad actually, as long as you did your survey and comparison of rates yourself making sure you can save on the insurance packages.

Car insurance quotes can be determined online in just a matter of minutes. You just need to fill in some forms and submit it online and the online representative will get back to you with your quote immediately. Purchasing car insurance premium can be made online and you can be provided with proof of purchase. Doing the transaction online really makes it convenient for you as a customer – need not to travel to the insurance office, or wait for the agent to make an appointment.

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