Most small engine aircraft such as Cessna's use a low leaded gas, usually blue in colour. But a lot of Cessna's can be converted to use regular gas that you would use in a car.
20.3 gallons
100 LL Avgas.
Depending on the engine in a 172 they will burn from 6-10 gallons per hour
The only ones I know of have a diesel engine, there are none in production and there is no STC yet, but there are some experimentals that have them.
No. The Cessna 172 is a single engine aircraft. It has a 4 seat cabin.
Depends on the model and tanks, but 38 usable is quite standard.
The Cessna 172 Skyhawk is a small light aircraft first flown in 1955. Images of the Cessna 172 Skyhawk can be found on line and in aircraft industry literature.
Cessna
The Cessna 172 has slotted flaps.
They run on 100LL avgas. It has a different price at every airport. Go to http://www.airnav.com, click on "Airports" then enter the name of the airport you want to use to learn the cost of fuel there.
The ceiling height of a Cessna 172 is 13,500 ft. The optimum altitude for maximum range is 12,000 ft.
Cessna Aircraft model 172 or C-172 for short.