100 series LPG conversion

While on here is good there is a forum called LCOOL which is everything TOYOTA and will answer almost any question on them

You have to join(for free)

Have a look there.

Can't comment on the V8. But my 75 series with the 1fzfe 4.5lt (6cyl) is on gas. It returned 4.5ks per litre on gas and 5.6ks per litre on petrol. So the economy is 20 percent less on gas along with a loss in performance and this is noticed when switching between the two fuels. Mechnical wise since the gas conversion (done 160,000ks on gas) there has never been a problem but then the 1fzfe has been described as bullet proof.

Given the cost of the conversion and the fourthcoming increase in the price of gas I don't think I would do it today.

Gas may be good for the planet but economy and the pocket it is not.

I'd leave your 100S as is and spend the money by installing a 3rd fuel tank (ie above the rear drive shaft) or a bigger main or current reserve tank/s to give travel distances.

Hi Bigsuz,

Welcome to the forum and hope we see you here many more times.

I have had gas powered vehicles for the last 15 tears and never a problem.

I had an 1997 80 series Landcruiser 4.5 petrol which I converted to gas, actually duel fuel, and found it was brilliant. If you get someone who knows what they are doing then you can't go wrong. It had 315 thousand on it when I got it. I put another 50 thousand on it without a single problem, .............. till I bent it.

I always have dual fuel as you can always switch to petrol if you run out of gas. Straight gas is a problem if you run out. It usually means a tow.

If someone is getting less power on the gas than petrol then the engine tune has not been adjusted properly for the gas.

The 80 series on gas returned the same kilometres per dollar as a turbo diesel when towing, and no turbo lag.

If you are traveling in the southern parts of the country gas is plentiful and cheap compared to the northern parts. The further north you go the more expensive it becomes and the less it is available. North of Rockhampton and the tropic of capricorn it becomes a little more difficult to find.

The V8 Landcruiser has to have the dearer conversion, sequential injection I think they call it, as the conventional fumigation method does not work any where near as well and they consume more gas than they should.

You will get a lot of negative comments about gas but I would suggest that other factors came into play when failures occurred. As I said I had a vehicle converted when it had 315 thousand on the clock and i loved that machine.
I frequently pulled a 2.2 tonne van with it and the only time I found it lacked power was on top of the great dividing range and any vehicle will lose power up there as there is slightly less oxygen in the atmosphere there.

This is borne out by the trail bikers in my area who regularly complain that their bikes do not perform as well as down here on the coast.

This is my personal experience, not someone else's comment passed on.

Even if you do have to get the heads done up you may well come out in front money wise in the long run as diesels can be bl@@dy expensive ones things need to be done, like $10,000 for a rebuild as I have just forked out. ( includes injectors and motor)

There are plenty of members on here that have had gas fitted to their vehicles for years and never a problem.

I currently own a 1996 turbo diesel Landcruiser with gas and it works well. But diesel over gas is a whole other ball game. I included that comment so that you can see I am not biased toward any fuel.

My advice is to sit back for a day or so and see what other comments you get and then make an informed decision which suits your situation.

All the best with your decision making and the future.

Cheers, Bruce.

I agree that LCOOL may be a better forum on the question of LPG.

i think that looking at the Big Picture is the only way to decide.
I have had LPG vehicles since 1983, including a 72 range Rover, 89 Partol, 94 80 Landcruiser.

I brought a new V8 100 in 2004 and had the dealer put it on LPG before delivery.
The car has just has its 200,000 km service.I have not heard of the V8 burning valves.
The original LPG "carb" system was replaced with LPG injection in 2009. (to take advantage of the Gov rebate)
This is a great improvement in performance so power loss is minimal.

I don't tow a big van anymore (18 footer), just a camper or a boat, but with a small camper and doing Cameron Corner and a few outback locations I managed 13.5 ltrs per 100 on petrol and 14.5 on LPG.
This is the exception as towing speeds were in convoy an 90kmh was the top speed.
In general and around town
LPG 17-18ltr per 100.
Petrol 15-16 ltrs per 100.

I run LPG most of the time and although I have done many long and remote trips I have only ever had to carry an addition 40ltrs of fuel. (mostly unused).

There are a few places where my vehicle is not suitable, Canning Stock Route is one, but the Simpson is no issue.

At the last place LPG is available I top up and switch to petrol (95 ltrs) that is good for 500kms plus not towing.
LPG is 80 ltrs usable and a range of 400 kms plus not towing.

So overall I have saved a great deal and had the pleasure of driving a petrol V8.

hi bigsuz

we have a 2005 landcruiser gxl update with the 4.7ltr v8 and 5spd auto, fitted with the vapour gas injection system and a 90ltr gas tank in place of the sub tank and spare wheel mount.
on day to day driving, some high way and some town driving (not towing) we get around 400km per tank of gas. we have just returned from northern nsw for Christmas holidays towing approx 1900kg 21ft windsor genesis van while noticing no loss of power between petrol and gas at all, gas use did increase quite considerably at worst travelling 200km per tank of gas approx 70ltrs, the best km per litres we received was 300km per tank of gas.
we also found that gas was a bit harder to find in nsw compared to victoria and more expensive also.
we do not regret having the vapour gas injection conversion fitted and have been very happy with it over all.
you could also look at fitting an LPI liquid petroleum gas injection system that are available now being the latest in gas systems.

hope this goes some way in helping you decide.
kind regards andrew.

Thanks for your input folks, seems a bit of a split down the middle as far as opinion on here goes. I think maybe leaning towards leaving it be now, seems a lot of money to spend for very small gain in the long run.
Will have look at LCOOL as suggested too. Thanks so much.
Regards,
Alison.