Auto-LPG Conversion Thread

**quan2boy** · February 2nd, 2009 09:08 PM

Curious lang ako...so dun sa mga meron real-time fuel consumption meter (e.g. Fortuner), I guess it would be interesting to see the "mileage" you're getting on the display when running on LPG??

**Mile2** · February 3rd, 2009 10:38 AM

Originally Posted by quan2boy

Curious lang ako...so dun sa mga meron real-time fuel consumption meter (e.g. Fortuner), I guess it would be interesting to see the "mileage" you're getting on the display when running on LPG??

I have MID in Innova same with other IMV (Fortuner and Hi-Lux), the display is the same as it calculate base on the matrix of Air-fuel mix, electronic gas pedal movements, electronic throttle, cam/crank MRE sensor and emission sensors. Basically, it does not include in the matrix the gasoline tank meter as it will not give accurate reading all the time when the car is moving.

So when on LPG mode, the MID average Km/li reading is just as normal when in petrol. I usually get a minus 1-2 average Km/li reading when on LPG.

**quan2boy** · February 3rd, 2009 04:11 PM

Originally Posted by Mile2

I have MID in Innova same with other IMV (Fortuner and Hi-Lux), the display is the same as it calculate base on the matrix of Air-fuel mix, electronic gas pedal movements, electronic throttle, cam/crank MRE sensor and emission sensors. Basically, it does not include in the matrix the gasoline tank meter as it will not give accurate reading all the time when the car is moving.

So when on LPG mode, the MID average Km/li reading is just as normal when in petrol. I usually get a minus 1-2 average Km/li reading when on LPG.

Hehe. Thanks Mile2. Akala ko kasi malilito yung computer kasi di nababawasan yung fuel sa tank...

**niky** · February 3rd, 2009 06:43 PM

It won't be accurate. It's guesstimating based on injector duty cycles (based on the ecu signals sent to the injectors, not based on whether the injectors are working or not), and as the air-fuel ratios are different on LPG, and the LPG injectors are "trimmed" to a different calibration than the gas (even with the same AFR based on O2, since stoich is different for LPG and gasoline), it'll always be a little off.

**XOOMaster** · February 4th, 2009 03:33 AM

Originally Posted by smdelfin

LPG prices keep getting higher. So the price difference between LPG and petrol keeps getting smaller. With the high cost of conversion, the ROI is getting longer. It seems it is now harder to convince other people to convert than it was a few years ago.
It is somewhat similar to what happened between diesel and gas. Years ago, their price difference is big, but not now.
You think that would also happen to LPG, that the price difference between LPG and gas would soon catch up to just a few pesos?

hi smdelfin! actually the shortage is not because of hording etc. its because of Europe buying LPG now that its winter time. LPG is a by-product when you produce gasoline and diesel so i don't see it having shortage issues due to production and its prices should return to normal levels soon enough.

**ghosthunter** · February 4th, 2009 10:47 AM

Originally Posted by XOOMaster

hi smdelfin! actually the shortage is not because of hording etc. its because of Europe buying LPG now that its winter time. LPG is a by-product when you produce gasoline and diesel so i don't see it having shortage issues due to production and its prices should return to normal levels soon enough.

Try telling that to the senators and congressmen who have the IQ level of a worm.

**denski2008** · February 5th, 2009 08:21 PM

Good evening to all auto lpg users. I have been using it for 5 moths now.
My friend said this morning that there was a news of a taxi in makati whose lpg tank blew. Please shed light on this matter. Thanks

**denski2008** · February 5th, 2009 08:25 PM

good evening. Please shed light on what caused the taxi in makati that is running in lpg that blew up as per bomboradyo report last feb. 2. TY

**ghosthunter** · February 5th, 2009 10:54 PM

Originally Posted by denski2008

good evening. Please shed light on what caused the taxi in makati that is running in lpg that blew up as per bomboradyo report last feb. 2. TY

The fire was cause by the A/C blower catching fire.

Do you think a gasoline fueled taxi cab would do better in that same situation?

**niky** · February 6th, 2009 12:31 AM

Originally Posted by ghosthunter

The fire was cause by the A/C blower catching fire.

Do you think a gasoline fueled taxi cab would do better in that same situation?

Or a diesel powered L300? Or Ferrari?

The driver said flames were coming out of the aircon vents. That indicates an electrical fire caused by faulty wiring or a faulty blower motor.