I drive a 1.5 Turbo Diesel Hyundai Getz
I have a question. I know why you should use 50ppm rather than 500ppm diesel but my question is why does it make such a big difference in fuel economy and in my sense the wrong way. On 500ppm i get average of 740 km per tank of diesel but with the 50ppm i get only average 640 km on a tank. i have done this with a few tanks to make double sure i take in consideration drive style and every thing and every time it comes to the same.
Can any one explain this maybe?