From those figures, the cost of the propane is 1.29p per mile and given the likely over reading of the trip computer, I would be surprised if you were gettng more than the equivalent to 55-60pg of diesel. Still very impressive considering the figures you're getting.

You really need to get some brim to brim figures and add in the use of propane to get a true mpg figure.

Maxidot still causing problems?

Indeed,

I am waiting for you to get urs in now

Mine gives 42mpg average with the VT5 and thats been the same over 10,000 miles since it was fitted.

Mixed motorway and commuting.

This is about 5-6mpg less than before the conversion.

Theres no way my fuel economy is going to go up with a big turbo with overall mixed driving on a like for like comparison with the standard turbo, as I am burning more fuel.

Its not really worth bragging about how much money you are saving on fuel when you have thrown thousands and thousands of pounds modifying the thing.

For anyone who has poor MPG, check your airfilter and fuel filter.

I changed mine last weekend and my economy has gone up by 5mpg.

Thanks for the explaination. Very interesting.

i have the small fabia tdi version and got a true 60+aprox mpg from nain to sauchie ( nearly 200mls of all road type driving)some weeks ago. this was keeping to ALL speed limits and having a lot of crap traffic for those who know the the a9 they will know how slow it can move. i say 60+aprox as you cannot be 100% sure of calulations so my calcs were 65+ so i would settle for 60+ as a more acceptable figure. first class

we had a 03honda accord 2lt sport with at the best was 30mpg with 2 people and no luggage, so 60+ mpg 35.00 road tax and 150 appx insurrance it's a wee belter.

my runabout to work car is a t plate honda civic 1.4 and gets about 20/25 on a 5 mile rural road trip.

my driving car is an mgf with honda type 'r' modded engine gets about 25mpg on the open road. at about 56/60mph it will do 45 mpg but a low of 5/8mpg on track runs

the fabia tdi is one of the cheapest running cost vehicles we have had to date ( and it can move if asked )