The world uses 30billion barrels of oil a year
The United States accounts for slightly less than 20%, down from a high of about 25% of the world's total oil consumption. China is a distant second place, with less than half, and in the European Union, German is first, only about 10% of US consumption.
2.5 gallons
One gallon. Perhaps the question needs re-phrased?
Depends on how worn the engine is. An engine in good condition won't hardly use any oil at all, maybe a cup or so, while there's virtually no limit to how much oil a worn engine can consume.
Assuming there are exactly 365 days in a year, there are 8760 hours. Because 1 gallon of oil corresponds with 1 hour, you will combust 8760 gallons of oil in a year with your given rate.
The final year for the Mercedes C320 was 2005. For 2005 year C320 the recommended engine oil are synthetic 5W30 for year round use. 0W30 meets all specifications for this grade also.
Depends on how much you use it. If you use it to clean around your home then use synthetic oil and change it once a year. If you use conventional oil change it every 50 hours or once a year whichever comes first. I highly recommend synthetic in an air cooled engine.
The U.S. spends 12 trilion dollars on oil a year
Not very much.
The united states produced 1,861,500,000 barrels of oil last year.
Use so much what? Oil?
How much fork oil do you use on a Aprilia SR50LC-`96?(ivg@mail.bg)
Limit your oil use as much as possible in healthy cooking, but if you have to use it, use canola oil.