Craig M
04-13-2004, 11:52
Anyone using the OilGuard bypass filters. Many large trucking companies have added these filters to their rigs. They use oil testing and extend the drain intervals. Takes most of the 2 micron and larger material out according to their tests. After 2 or 3 times the normal oil change intervals the tested oil is typically better than the beginning oil. I am more interested in removing the 2 to 35 micron particles, than extending oil change intervals. Like Dr. Lee says additive package does not show up in particle testing. I have a local rep near by. Unit is $120 to buy and $12 for filters. I see they have added themselve to our list of "prefered" vendors.