[clf]

Originally Posted by COLVERT

I measure tank to tank. Set the trip and off I go.

At the moment showing 53 mpg from my diesel.

Worst ever 49 mpg.

I use any diesel. The nearest garage when I need to fill up.

Never let the tank go below 1/2 full.

The vast variations by the OP leave me baffled.--

What ARE these additives that can give another 10 mpg.

I definitely want some.----