What is the compression ratio of the Avalon engine?
2 Answers
The compression ratio of the Avalon engine is 13. The compression ratio is the ratio of the maximum volume of the cylinder at bottom dead center to the minimum volume at top dead center during the compression stroke of the car. The Avalon is a mid-size 4-door 5-seater sedan with body dimensions of 4975mm in length, 1850mm in width, 1450mm in height, and a wheelbase of 2870mm. The Avalon is equipped with a 2.5L engine and an 8-speed automatic transmission, with a maximum power output of 154 kilowatts. It features front-wheel drive, with a MacPherson strut front suspension and an E-type multi-link independent rear suspension.
I have worked in the automotive industry for many years. The engine compression ratio of the Avalon varies by model. For example, the common 2.5L hybrid version has a compression ratio of 13.0:1, while the standard 3.5L V6 engine is approximately 10.8:1. The compression ratio refers to the proportion of gas compressed by the piston. A higher value indicates better combustion efficiency, which improves fuel economy, especially in hybrid models. Based on my driving experience, a high compression ratio makes the car start more smoothly and saves a significant amount of fuel in daily city driving. However, it's important to pay attention to fuel quality, as using low-octane gasoline may cause knocking issues. Regular maintenance checks on spark plugs and sensors are also necessary. This is an advantage for long-term owners, but choosing the right model should be based on individual driving habits.
