We have done business with JASPER for over 3 years. During that time span we have purchased over $200,000 in product. The majority of our purchases have been on the 6.9 and 7.3 liter International diesel engines. We have had great success using the JASPER product, and the few problems we have had have been handled quickly and efficiently. I would not hesitate to recommend JASPER to anyone and look forward to continuing our relationship with JASPER Engines in the future. - Steve S.