Displacement refers to the swept area the pistons cover when going up and down inside the engine blocks cylinders, sucking in air and fuel, compressing it, then igniting it with spark, then the flame front pressure expansion shoves the piston down performing work by cranking torque into the drivetrain to twist the wheels and tires to move the vehicle forward, the final stroke of the 4 stoke engine involves opening the exhaust valve as the piston moves back up shoving the spent fuel and air mix as exhaust gas out into the emissions controlled exhaust system and finally out the tailpipe into the atmosphere.
Our 2001 Audi A4 2.8 Quattro has a 2.8 L or 2,800cc V6 30V engine mated to a PDK Porsche designed Tiptronic 5 speed automatic & all-wheel drive featuring LSD on the front and back axels, like a rally car and can tow 3500 lbs., which is amazing for a small sedan. It requires premium unleaded gasoline and gets between 20 and 44 MPG depending on driving style, less when driven faster and more when driven carefully with safety focused fuel saving hypermiling. If we convert cubic centimeters to cubic inches the 2800cc engine also 170.87 cubic inches. It holds 16.6 gallons or 25 liters of fuel in the gas tank. The engine feature hydraulic control variable belt driven dual overhead cam system. The timing belt must be changed every 70,000mi or 10 years because the interference engine will destroy itself if the belt snaps. When new, the engine made 190 hp @ 6000 rpm, and 207 lb-ft torque @ 3200 rpm. Buttera motors helps me to professionally maintain this antique German car that my late adoptive mother left me in her estate.
Our 2013 Honda PCX 150 has a 153 cc single engine of 13 hp and 11 lb.-ft torque, around 9 cubic inches of displacement, with a belt driven CVT and rear wheel hub gearing, able to hit 70 MPH best case, it cruses well with Meg & I ride 2 up together at speeds of 40-55 MPH. It holds 1.1 gallons or about 3.8 liters of fuel and gets between 83 and 105 MPG on regular unleaded gasoline.
Our 2010 Prius has a 1.8 L or 1,800 cc engine or about 110 cubic inches. It holds about 11 gallons of fuel or 42 liters and gets about 48 MPH or less than 4 liters per 100km fuel economy. It can cruise at speeds between 50 and 85 MPH just fine and gets its best fuel economy around town in ECO mode.
Our 2020 Yamaha MTO3 has a 321cc or 19.6 cubic inch offset parallel twin engine that makes about 40 hp and 20 lb.-ft of torque. It holds 3.1 gallons of fuel or about 11.7 liters and gets 48 to 83 MPG depending on riding style and other variables. I averaged 58 MPG on a recent nearly all highway speed road trip riding 800+ miles there and back. In city use as a commuter I get around 70 MPG driving it more gently, or mild hypermile techniques that keep up with traffic but avoiding rabbit fast acceleration or other fuel wasting full throttle engagements, along with earlier upshifting and keeping an eye on the instant MGP readout on the TFT dashboard.
Our 2022 Toyota Corolla Hybrid has nearly the same drivetrain as the 2010 Prius, same 2ZR-FXE engine, so 1.8 L or 110 cubic inches, with similar power, but also smaller and more aerodynamic and 650lbs less mass or lighter weight and the lithium hybrid battery more efficient, so I am able to get 53-74 MPG. That means a range of 590+ miles on a fuel-up with 11 gallons or 41.5 liters of gasoline.
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