Amsoil By-Pass Oil Filters Extend Engine Life

“Extended drain intervals,” a term AMSOIL President A.J. Amatuzio coined in 1972, is now, nearly 30 years later, a high priority throughout the transportation industry. Automobile manufacturers want them. In fact, they’d like to see drain intervals as high as 15,500 miles. Environmental groups, as well as the U.S. Environmental Protection Agency, want them because … Continue reading “Amsoil By-Pass Oil Filters Extend Engine Life”