Unleaded Premium
Unleaded premium shares many characteristics with regular unleaded but they differ in several ways too. The octane rating of a premium unleaded is typically 100 or higher. This is an important characteristic as not only does it keep the engines cleaner due to its detergent additives, it also produces less pollution.
Higher-octane fuel confers an advantage in some cars as it allows performance-oriented engines to burn gasoline at higher pressures and higher temperatures. Furthermore, gasoline with a higher octane rating does not self-ignite easily, and burns more evenly than lower-octane fuel under harsh conditions, resisting detonation and knocking.
To make a better decision on fuel usage, always read carefully the car manufacturer’s manual. If it is indicated that premium gasoline is required then it is better to follow the manufacturer’s advice. This ensures that the engine stays in best shape and performs at its peak. If the use of premium gasoline is just a recommendation then the car owner can feel comfortable simply using regular unleaded gasoline. Using premium gasoline on an engine that is designed to work with regular gasoline has no significant effect in performance.
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