Thread: D2a V8 gas conversion

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I have been researching this for some time.

I'll forward you some emails I have. They may be of help.

It is possible to get a good functioning gas system on a D2, but your installer must understand what is needed. Like all modern vehicles there are ways peculiar to the beast. Find someone in your area who has done at least one successfully and will allow you to talk to their D2 customer. Cost can be anywhere from $2K to $5K depending on what you want.

A question if your don't mind?

Have you sat down and worked out how much you will save in fuel bills on LPG versus petrol over say 100,000 ks of driving?

I wouldn't mind betting it isn't that much of a saving. I have not sat down and crunched the numbers but using the old upstairs computer at first glance to me it doesn't seem that attractive.

I worked on the basis of using the good later model injection systems which are about 5k up front then less the rebate of, from memory, about 1.8k or so.

I'd be really interested to hear from anyone who has crunched the real numbers and looked at the advantages and disadvantages.

Just a thought.

cheers,
Terry

welcome to APA


Per Annum Distance Travelled - 20000 km
Petrol Consumption litres/100km - 20l/100km
Petrol Price Per Litre ($) 1.30
Autogas Price Per Litre ($) .65
Annual Petrol Consumption 4,000 litres Annual Petrol Cost $5,200.00
Autogas Consumption 23.000 litres/100 km
Annual Autogas Consumption 4,600.00 litres
Annual Autogas Cost $2,990.00
Annual Savings $2,210.00
Cost Of System ($) 5000
Conversion Costs Recouped In 27.1 months Weekly Savings $42.50

Tried to copy from the above site but formatting stuffed.

Looks cheaper to me

$5k is top of range system, get a better price and less rebate of course it will pay for itself in under a year.
I had several V8's done, I had a basic system installed and the rebate pretty much covered the install so I was very happy.
The full monty gas injection I am sure is much better but I never tend to keep cars that long, well not until now anyway.

Go the gas, it will serve you well.
make sure its by a guy that has done a few Landys though as said previously.

What about the new excise?
Watch the fine print, new excise on LPG

In 5 years the saving on the above calculation will be $1635 assuming that petrol and gas price relationships stay constant.

Savings could be wiped out by just one or two problems with the gas setup needing extra service unless you are mechanically minded. Judging from these forums problems with gas installations are pretty common eg seized petrol injectors, gunk in converter, water leaks into gas system.

In addition you lose either your range or storage capacity.
I am just looking from my perspective where I could not do without my storage capacity or current range with a Long Range tank.

You may have different priorities but the above should be considered.
Regards Philip A

If the formula used to compare costs for a 4L D2 V8 between LPG and petrol uses 20 litres per 100 ks as the average fuel consumption on petrol then there might be a problem.

My D2a doesn't average 20 litres per 100, it averages 16.5 litres and I have been taking note of fuel consumptions since I brought the D2 over 10 months ago.
I consider 16.5 L / 100 k isn't that bad for a 2.2 ton low flying brick and if my numbers are about average then that means it would take quite a bit longer to recover the conversion costs.

If I'm wrong then please tell me how?

cheers,
Terry