Nissan-Navara.net 6th Aug 09 I’ve now covered near 17k miles since I bought my 58 reg Nav last Christmas. And have done approximately 14k of that with the DTUK PDI system on it. I must admit that the power is still there, still drives great and has proven very reliable. I’ve just come back from a road trip to Italy where I’ve experienced temperatures of upto 39 degrees and the Navara performs the same as it did when we had the heavy snow here in England. In fact on the way back we went across the Gotthard Pass upto the 6500 foot through the snow/ice before going back down to 32 degree heat…The Navara runs very nice and cool, didn’t miss a beat and didn’t smoke under any of those circustances (and yes I was looking at my side exhaust). I know 14k miles is not that long term but probably more miles than most on here. Totally and utterly reliable….