Learn about the education and preparation needed to become a sales associate. Get a quick view of the requirements and details about schooling, job duties and training necessary to find out if this is the career for you. Sales Associate: Job Description, Requirements and Career Information.
Burning natural gas is exothermic. An exothermic process releases heat, causing the temperature of the surrounding area to rise. Burning gas releases heat and warms whatever is around it, so it's exothermic. An endothermic process absorbs heat and cools the surrounding area.
Lower quality gasoline can benefit from the use of certain fuel treatments, not only to enhance its octane rating, but also to improve overall efficiency as it burns in the combustion chamber. Like engine oil, many fuels already have their own additives added in at the pump. For example, Chevron and Texaco use the patented Techron fuel additive in their gasoline. Shell, BP and other fuel suppliers add their own additives for the sake of fuel quality and performance.