Dieselogic is the Research Division of L&J Diesel Service, Inc. (a Diesel Service company, in business for over 40 years). We have developed user friendly test equipment which works with equipment most shops already have. With our cutting edge technology in test equipment, we are continually developing methods to reduce the environmental impact of the existing diesel engines.

We don't stop at just supplying equipment. We also engineer parts and components for fuel injection systems. We specialize in revitalizing existing older test equipment by providing adapting instruments and Retro-fit Kits that will enable you to generate new sales dollars from an out-of-date test equipment.

Most of our products are engineered based on feedback from our industry. In development of all our test equipment we focus on continuous improvements in fuel efficiency and emissions. If you want a dependable high quality product, whether its one of our ZF1 Test Stands, Universal Cam Box, CD3 Retro-fit Kits or a Dieselogic refurbished injector, we are eager to serve you.