We hope this clears things up about the fuel grade issue, and if there are any further questions, feel free to leave us a comment below. Otherwise be sure to keep checking back here at the Volkswagen of Springfield Blog for more posts like this one. You can follow any responses to this entry through the RSS 2. Both comments and pings are currently closed.
Home New Volkswagen. Sales: Service: It will result in a slight decrease in performance and fuel efficiency, however. Before the arrival of powerful computers and sensitive sensors, the use of regular fuel in an engine designed for high test would result in what is known as detonation, engine knocking or pinging. This occurs when pockets of the fuel-air mixture in a cylinder ignite as a result of heat and pressure rather than a spark plug.
This can lead to catastrophic — expensive — failure through holes punched in the pistons or damaged cylinder heads. The cures are higher-octane fuel or the prediction and detection of "knock" and subsequent change in ignition timing.
Today's sophisticated engine management systems — made necessary by the need to have engines police themselves for exhaust emissions — are quite capable of reducing the risk of engine damage from lower-octane fuel.
In the case of turbocharged engines — which force fuel and air into the combustion chamber under greater pressure — the need to detect and prevent knock is even greater.
Therefore, turbocharged engines typically require more design and operational features to prevent engine knock than naturally aspirated engines. The octane rating of gasoline is an indicator of its resistance to spontaneous combustion.
The higher the octane rating, the greater the resistance to preignition, the fundamental cause of engine knock. Use of higher-octane gasoline can offset the increased risk of engine knock caused by increasing engine compression. This higher octane is the reason why premium fuel has historically been required in performance and luxury vehicles that maximize power and torque.
In model year MY , turbocharged vehicles accounted for 3. By MY , their share was more than five times greater, at The growth in market share of turbocharged LDVs reflects increased use of turbocharged engines in popular vehicle models.
Research by AAA found that these vehicles saw a slight increase in performance and fuel economy using premium gas. Depending on what and how you drive, commuters looking to get from Point A to Point B may not notice the difference or care. At the end of the day, it all comes down to your preference. Your car, your rules. Type: Car Ownership. Published: January 11, So, what's the difference between premium and regular gas?
If your car only recommends premium, the choice is yours.
0コメント