Cars made from aluminium use less fuel than cars made from steel because aluminium has a low density this makes the car to be lightweight. Whereas with steel, it has a high density so it makes the car to be very heavy. So if steel was used over the same journey more fuel would have to be used and therefore less fuel would be used if you used the metal aluminium.
Aluminum is less dense than steel and still has very usable strength. This allows a vehicle constructed of aluminum to be lighter than a vehicle made primarily of steel. Since less energy is required to move less mass (weight) the same distance (e.g., a mile), lighter cars can be more fuel efficient.
I would suggest that Aluminum is preferable. It is lighter than steel, which can result in a higher performance vehicle (faster acceleration, better braking, improved fuel economy). Furthermore, unlike steel, aluminum will not rust. Aluminum is also easier to recycle. Aluminum cars have a stiffer feel- giving them a sportier feel, and absorb impact about 1.5 times as well as steel, making them safer. The downside, of course, is the high cost of aluminum compared to steel.
Steel or aluminum.
no it is made of steel not aluminum
Lighter weight
The coated steel is fine. Real aluminum would be lighter with the advantages that brings. (slightly better ride and possibly slightly better fuel economy, maybe 1 or 2 %)
Most fuel tanks are made of steel or plastic.
Aluminium coated steel is a common diesel fuel tank material, as Aluminum is unaffected by diesel. Aluminium is metallurgically bonded to steel by hot dipping ; it protects the steel & won't flake off.
Primarily steel. Some panels and attachments (e.g., steering wheel) will be plastic. Wire will either be copper or aluminum. Hydraulic hoses will be rubber with stainless steel fittings... the hoses might be reinforced with steel. Tires will be rubber. Fuel tank may be steel or aluminum.
Aluminum is easier and cheaper to mass produce than is steel. If you recycle aluminum, you get more money for aluminum than for steel only because manufacturers have for decades focused on aluminum as the cheaper way to manufacture so many things. Aluminum is lighter in weight; is more easily bent into desired shapes; can be easily separated from other metals (chemical process); and is easily shipped to manufacturing plants. As one example, in the earlier days, airplanes contained steel and were heavier, cost more in fuel, etc. Now, all airplanes are made of aluminum shells, are lighter in weight, use less fuel because it is lighter in weight, and all of the aluminum can be recycled. Same with automobiles.
Gross Vehicle Weight 80,000lbs, legal road weight, actual fuel weight varies as vehicle weights vary between 35 and 45 thousand lbs. ie aluminum or steel tank size, engine and trans choices on tractor, aluminum or steel wheels etc etc
With the lighter aluminum, a better power to weight ratio can be achieved, which can improve fuel economy. This is an advantage only if driver safety is maintained.