Having trouble these days with Toyotas setting DPF codes and in limp mode. We seem to be able to do a manual over ride on the Hi Ace, but not the Hi Lux with our scan tool, the Hi Lux is not supported. We send them off to Toyota, and the first thing they ask is what oil has been used. So, when servicing them still under warranty, we are using genuine oils and filters. No indication of who makes it....must be done in the Toyota oil refinery.