Characteristics: Bismuth is a brittle, silvery-green metal that has a low melting temperature and high specific gravity. Being both stable and non-toxic, bismuth is often used as a replacement for toxic metals such as antimony, cadmium, lead and mercury.
1 (Minimums vary by location and tank size, and can range from 100-1,500 gallons.) More often, the propane company charges a fee of anywhere from $25-$250 a year but averaging around $75-$130 annually, depending on local rates, the size of the tank and whether it's aboveground or underground.
On average, Americans are now paying about 15 cents a mile for the gas they buy, but the cost varies widely, depending on the vehicle. Below are typical costs for some popular vehicles, based on fuel-economy ratings calculated by Consumer Reports magazine and on the national average for the price of gas ($2.96 per gallon). Vehicle.