Since the company's inception, NAPRO® products have been thoroughly tested under both laboratory conditions and millions of miles, hours and gallons of actual use. Leading universities, governmental bodies and testing agencies in the United States and abroad have conducted independent and unsolicited test studies on the value of NAPRO® products.

Results of these tests have always shown that when used according to directions, NAPRO® fuel additives help improve fuel economy, lower maintenance costs, reduce fuel emissions and harmful deposits and eliminate fungus and microscopic organisms. In addition, the test results have shown that when used as recommended, NAPRO® products will not harm engines, mechanical parts or basic fuels.