Octane level is not the same as the additive package. AAA found in the study that non-TOP TIER™ gasoline, which lacks additives, caused 19 times as many carbon deposits as TOP TIER™ gasoline. These carbon deposits will reduce fuel economy, increase emissions and degrade vehicle performance, especially on newer vehicles.
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Car Buying: Hybrid Vehicles vs. Conventional - Will Fuel Savings Cover the Higher Price?
Due to federal fuel economy standards that require a manufacturer's average fuel economy to reach 54.5 mpg by 2025, car manufactures will continue building more hybrids. We compare a few popular models to see if the savings add up for you, the consumer.
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