Quote Originally Posted by Bigcol View Post
- if I run my TD42 to and from work for a week - works out at 13.9L/100 - $60.00 diesel
- if I run my TD42 to and from work with the gas on for a week - works out at 12.5L/100 - $38.00 diesel & $12.00 gas
Uummmmm something doesn't gel, Cobber?

12.5 LPH versus 13.9 LPH of Diesel economy is 10% less Diesel used for the week... or... 90% of the original amount of Diesel is still required
$38 versus $60 is 36% less money spent on buying Diesel... or... you only bought 63% of the original amount of Diesel instead of the 90% still required

If you needed 90% of the original amount of Diesel you would need to spend 90% of the original amount to buy it ($54)