Tester tried many times with the usual brutal static acceleration, but only brought the level down to 6.2
My driving style is for ecomomy, with the rev counter rarely going past 3000, so the tester suggested giving it a good thrashing and then trying the test again, but could this bring a level 6 to under the limit of 3.0? He also suggested trying an additive, but I have heard that this is not advised for HDi. There are no warning lights up, and engine runs fine except for a little noticeable black smoke if I put my foot down. Onboard computer registers mpg between 35 and 45.
