George A

Hello, I had my Aurion fitted up with GAS. The car runs perfect with no loss of power and the running costs are 50% to that of petrol. I would not have had my car converted to LPG if it wasnt for this new injection system where you dont lose power. I spent 3 months researching LPG for the Aurion and I found the right installer (that is very important). Some people on the forum have said Toyota dont recommend LPG for the Aurion motor. News announcements last week indicated taxis going to the aurion with lpg so that cant be right. Also, Toyota had helped develop the LPG system for the Aurion but Toyota would rather have you buying the Prius; they dont make any money if you convert your car. The gas tank is not so big so its not too bad on space. This is what my fuel costed me, so far, in heavy city driving: 1. 290km $33 @ 64.9c/l 2. 240km $23 @ 64.9/l (with 4c discount per litre) Not bad, eh! I dont mind visiting the servos anymore. I am not really worried about the debate 'to convert or not to convert'. I am happy with the conversion.

Where did you research this information? Some of those points defy the logic of physics... 1. LPG will cause a power and efficiency loss due to the lower density of the gas. LPG has a higher octane rating, which compensates for the lighter density and brings performance to a comparable point to petrol. The loss of efficiency still exists however and means that in a car that would typically make 10L/100km of petrol, will be closer to 15L/100k running on gas. This is going to be the case with comparing ANY gaseous fuel to a liquid fuel and is a scientific fact that cannot be debated. 2. Engine wear - this is a point to be argued. UNLESS additives are used in the gas to provide additional lubrication of which gas by itself lacks, valve seat wear WILL INCREASE. There is negligible impact to cylinder walls and rings. However, this may be compensated IF the engine is designed to run with gas (the Aurion is NOT designed to run with gas), which in that case will have compatible alloys and internal designs to be able to handle the significant reduction in lubrication. If you wander around wreckers and take a look at almost any car that has a gas system, you will find that the head is not in very good condition and will require either valve seat replacement and/or entire valve replacement. LPG does not have any lubrication at all by itself. 3. This is true for the most part, but is quickly compensated by the fact that additional tuning and maintenance is required in order to ensure the gas system is safe. This includes regular checks of emergency cutoff valves and testing of all fittings to ensure there are no leaks. In older systems that used an air intake mixer - this would also include replacement of diaphragm parts at regular intervals to ensure correct mixture. This is not the case with injection systems, although they must still be tuned on occasion to compensate for any variances introduced by various qualities of gas. Also note - the government has plans in the very near future to introduce additional excise tax to gas (approximately 60c/l has been suggested!), which will very, very quickly make any additional gains very minimal. 4. Yes this is true - only the old-style mixer systems had this issue due to incorrect mixtures from lack of tuning. Injected systems do not have this issue as an ECU is used. Do not believe everything gas fitters say, as they are all out there trying to make an easy sale!

Hello Andrew. You may have heard a lot and read many things about LPG and whether it will be any good for your Aurion. I am the right person to speak to because I have done over 3 months of research via the internet and speaking to different installers. These are the very hard facts: 1. You will not lose any power at all. 2. There is no increase on engine wear (in fact, LPG will increase engine life). 3. With the current prices, the savings on fuel is 50% over petrol. 4. Your engine will not backfire (that happened with old technology) 5. You will be extremely happy with this fuel (I had my HSV Commodore on LPG 10 years ago and it was great). With this new system it will even be better. Dont hesitate if you really want it. Dont listen to too many people and take very little notice of what is posted on the internet (I gues that means me). I have a saying, 'Dont believe what you hear and only believe half what you see.' I have done all my homework for the Aurion. Dont bother with what Toyota might say because they would rather have you buy their Prius if you want to save money. As a matter of fact, when you speak to any one of them, they all seem to have a different opinion about LPG. Be sure you pick the right installer. I went and checked out a few places and I decided to go with this particular one because of the following reasons: 1. Professional looking workshop 2. Manager was very knowledgeable and answered all the weird questions Good luck. I will give you my mobile if you wish to discuss this via phone. George

Unfortunately, the speedo should've been digital because nowadays because plus or a minus 1km could be very critical with speed cameras. Not only that, the speedo does not have increments of 2 making it impossible to know your precise speed. I called Toyota because the speedo on my Aurion reads 5kph lower than the actual speed. They said I am the lucky one because the acceptable maximum tolerance is 10% + 6 ie your speedo could be reading 116kph but you are actually doing 100kph. That is very silly. I know the Fords and Holdens are much more precise than that. Toyota have failed on the basics. Regards George

[font="Impact"]I have the Presara and no matter how careful I am with my driving I cant get anywhere close to the fuel consumption figures you get. I dont drive it hard and I do use the Motorways about 25% of the time. I've been told by the Servicing Manager it is most likely because of the cold starts etc. Can you or anybody help out there please?