I am not sure where your from, but do you guys have LPG, liquified petroleum gas for your cars
in australia, most of the petrol 4wd owners convert them to lpg. cost alot less than changing an engine to diesel
uses slightly more than petrol , but is less than half the price per litre.
i will put some figures up , but have to convert them from litres/kilometre to miles per gallon for you
on petrol i get at worst 5.5 km/litre in the city ,, which i beleive is 13 miles per gallon( this is a with some bigger tyres i have put on)
so for 100 miles need 7.69 gallons,,,, we pay Australian $1.25 to $1.35 for the good stuff per litre which is $4.73 per gallon so
to do the 100 miles would cost $36.38 AUSTRALIAN DOLLARS
now gas conversions the older style they lose 15% on your mileage ( new direct gas injection can get better mileage but costs more)
now i get 3.6km/litre in the city ( worst case full traffic city driving)
which is 8.52 miles per gallon. pretty bad other engines and other types of lpg conversions do alot better
to travel 100 miles i need 11.73 gallons of LPG
it costs us $0.48 per litre here which is $1.81 australian dollars per gallon,,
therefore to travel 100 miles on LPG would cost $21.28 australian dollars
thats a saving of 42%
and its a cleaner fuel
better for environment
it has a higher octane raiting,it will never ping or knock
some bad points
if you want to retain petrol as well
which is reccomended as some areas dont have LPG yet,
you must put the gas tank where the spare goes
so you need to put spare on a gate on the back door or inside the cabin
or on the roof, or leave it at home when your in the city
you do loose a little bit of power down low
but you gain power up top,
only small tanks can fit where the spare goes,, 62 litres ( 16 gallons of usable gas) ,, have to put it insidethe cabin if you want a larger tank
with the new systems which have come out, they use a lot less gas they have a cpu running the gas injection
less emmisions for the environment,, more power throughout rev range,, but they cost alot more and i dont havemuch info on them yet, only seen two so far
I have an everage system costs around AU$3500 the new injection systems cost around $5000
thats probably a better option than diesel if LPG is available where you are