Ways to save on fuel!!??

meant to add TTFN

I've made a couple of assumptions here but plug in your real figures.


Based on: Annual Km:25000
Petrol Consumption 18L/100km
Cost of petrol/Litre:$1.50
Cost of LPG/Litre:$.70
Conversion Cost $6700

Monthly Savings $222
Payback Period 30 months
Annual Savings $2664
Weekly Savings $51

I simply added the cost of your freewheeling hubs into the conversion cost. As you can see, in 2.5 years you're in front.

The $6700 would purchase 4466 Litres of fuel @ $1.50 Litre. If the vehicle uses 18 Litres of fuel per 100 Km, the 4666 would be enough fuel to travel 24800 Km. ( & that is just your extra cost ) Your break even point would be rather significant I think

At the risk of sounding flippant; a reduction of 10klm per hour at highway speed can reduce fuel consumption by between 15/20% and costs nothing. Removing roof racks etc when not needed will also yield a benefit.

Very possibly you are doing this and you are looking at additional ways of saving, however its sounds like a lot to spend to achieve fuel savings esepcially on things that may actually be hard to measure the real benefit.

how our budget would work is this:

if fuel was costing $50 per week...wanting to do that sort of stuff to the car to reduce the cost each week to $30 then for the next however long I would put that $20 away off the mortgage or off the bill that paid all that......put it to good use....

You've inspired me to get my books back out and work them again...been slack lately....

but as for fuel prices...well...I got dibs on the pushies being the next best thing across the simpson!!!LOL!!!!

To all who replied, thank you. Being a retired type of driver - there being no rush - cruising on the flat no wind 80- 86kph fuel consumption approx 7L/100km. Realistically say 10 (stop/start, some towing) looking to do some big trips in a couple more years it still seems difficult to justify even at current $1.70/L.....hmmmm.....whatcha think doc?....silverback

Hi David,

If I was in your position I would first want as accurate a figure as possible for the fuel savings. Factor in that lpg may be cheaper but the km/p/100km is worse etc. The less driving you do per week the less of a saving you get ie if you did less than 100km per week and you were only using 2 litres less fuel, then the saving would be less than 2 x cost of a litre of fuel - $3.40 per week.

If I needed to use a bank loan or extend the mortgage for the upfront costs then it wouldn’t be worth it?

Also, if I upgrade my vehicles every few years would I recover the outlay before selling the vehicle?

From a completely different point of view; if I had the money spare in the bank and it wouldn’t leave me broke or halt the home renovations or the annual holiday etc, I could view the expenditure as part of the cost of the vehicle purchase. Once spent you wont miss it and it may mean I have a few more dollars every week. Although, even looking at it this way, I would like to know I was saving quite a few dollars more per week to really justify it. After all, the initial outlay would buy a lot of fuel for travelling, or accessories, or a longer holiday, or …..

Just my point of view, but I would bugger the idea off. :-))