Auto-LPG Conversion Thread

[aejhayl17]

so a converted vehicle still have its gasoline tank for gasoline combustion? now i know. btw, pwede po ba sa both carburated and fuel injected ang LPG conversion? or much better sa carburated engine?

thanks sir GH

[ghosthunter]

so a converted vehicle still have its gasoline tank for gasoline combustion? now i know. btw, pwede po ba sa both carburated and fuel injected ang LPG conversion? or much better sa carburated engine?

Both carb and fuel injection engines can be converted to use Auto-LPG. There are different kits for different types of engines (carb/efi) to be converted.

[n5110]

I'm also experiencing problems with my car. I've had days when hard starting occurred repeatedly. Last night, I filled up my car with LPG and this morning, I did have this hard starting issue again. I tried starting the car and pressed on the gas pedal slightly and when the engine ran, it sounded like a drowning engine. Similar to the sound when a carb engine is flooded with gas but mine is fuel injected. Switched to LPG and got the same result. Was advised to let the engine run for a couple of minutes while stepping on the accelerator pedal to burn the excess gas.

I also have the same experience last week after na stuck ako sa INC traffic jam. driving a 10KM stretch in 7hours. anyways, i also suspected that the solenoid is partially open when i start my car in the morning. nangyari lang ito 2 times and after that normal na ulit ang start ko whenever the engine is cold.

dati kasi napag laruan ko yung switch. cold engine, nag start ako sa gas then after a few seconds auto switch to LPG, then binalik ko ulit sa gas. dito ko na experience na parang lunod ng gas yung carb.

yung na experience ko recently parang palyado ang makina, kumakalog yung engine, pati dashboard pati tambutso. pero after mga 3 minutes bumalik na sa normal. hinde ko tuloy alam kung anu naging problema. ipapa check ko na rin sa greenfuel, this month na kasi ang 1 yr ng kit ko.

ang hinde ko lang talaga mahuli sa lpg is yung pag adjust ng idling, i tried to adjust a few times pero kailangan talaga ng practice. the rest ok naman.

[bigMIKE]

I also have the same experience last week after na stuck ako sa INC traffic jam. driving a 10KM stretch in 7hours. anyways, i also suspected that the solenoid is partially open when i start my car in the morning. nangyari lang ito 2 times and after that normal na ulit ang start ko whenever the engine is cold.

dati kasi napag laruan ko yung switch. cold engine, nag start ako sa gas then after a few seconds auto switch to LPG, then binalik ko ulit sa gas. dito ko na experience na parang lunod ng gas yung carb.

yung na experience ko recently parang palyado ang makina, kumakalog yung engine, pati dashboard pati tambutso. pero after mga 3 minutes bumalik na sa normal. hinde ko tuloy alam kung anu naging problema. ipapa check ko na rin sa greenfuel, this month na kasi ang 1 yr ng kit ko.

ang hinde ko lang talaga mahuli sa lpg is yung pag adjust ng idling, i tried to adjust a few times pero kailangan talaga ng practice. the rest ok naman.

Please bring your car for a thorough check up it may be because of clogged lpg fuel line or solenoid filter is clogged due to dirty lpg

[bigMIKE]

I posted months ago of having my lpg kits removed but yet due to economics, i continue using it until BAD things happened last saturday (my vehicle is not yet working at the moment, diagnosis and works are still on the way). My lpg conversion is a year old already.

The vehicle gasoline fuel system is not working until it completely stalled. During the time that the gas fuel system is not functioning, i run the vehicle using purely lpg. But when the complete stall happened, even the lpg kit is not functioning.

From the diagnosis and check ups by a reputable Mitsubishi authorized shop electrician/mechanic, the malfunctioned gasoline fuel system was brought by an overheated fuel pump which almost burned the entire vehicle (Mitsubishi Adventure gasoline). The entire fuel asssembly was burned which prompted me to replaced it with an OEM materials. The worsiest thing discovered is that the computer box was also damaged because of the electrical damaged at the fuel pump assembly.

Buti na lang, the worst thing did not happen to me and my family. God Blessings.

What prompted the gas fuel pump to overheat? Maybe sir Mike and other lpg conversion gurus can help me.

Is the fuel pump remains at "ON" mode even when we are running on LPG? According to the LPG mechanic who visited the vehicle when it stalled, he mentioned that they are presently installing relays so that the fuel pump will only function when in gas mode.

I hate to think that these worst things happens because of my conversion. I ended up losing a lot than saving a little. At present, im looking for a computer box for which we know will cost a lot.

Thanks for raising issues mentioned above

First of all let me allay your fear that the fuel pump can cause burning of your vehicle cause it will not. The fuel pump may have been damaged not because of overworking as in normal running condition it is suppose to work all the time. The fuel pump condition might have been caused by dirty fuel or possibly because at one time or another your gas tank was running empty and thus the fuel pump was damaged.

Second you mentioned that you had trouble with your fuel pump earlier on but your vehicle continues to run on lpg. If this is the case then your check engine might have lit up. If it did not then you must have had a bad computer box to begin with.

Third at customers option we do put relay on the vehicle fuel pump however this is not necessary. As a matter of fact most of the vehicles converted do not have a relay installed and yet they work fine up to this day. This includes my CRV and X trail which has been running for more than two years on lpg. Even taxis who on average clock in 100,000K /year have been running without fuel relays for two plus years now. Even if you ask other auto-lpg installers fuel relays are not a standard.



Please let me know about your vehicle and I would suggest you get a second opinion. As you know even if we go to an authorized service centre the diagnosis might differ from one service centre to another. This has happened to me several times. And in most cases the most convenient excuse is anything foreign inside the engine bay.

[aamd]

Fuel Consumption as of 13 May 2009

Car:.................2004 Mitsubishi Outlander 2.4.........1998 RAV4 2.0
LPG Kit:............SGI Greenfuel..............................CATGAS Open loop
Date (2008):.....June 23, 2008 - May 6.....................May 19, 2008 - May 10
Km/Liter:..........5.82.............................. .............5.61
Peso/Km:..........4.61................................. ..........4.73
% Loss:............27%.............................. .............20%
Peso Savings:.....P29,167.35........................... . .......P27,467.70
% Savings :.......24.70%.................................... ..32.20%


Fuel Consumption as of 09 August 2009

Car:.................2004 Mitsubishi Outlander 2.4.........1998 RAV4 2.0
LPG Kit:............SGI Greenfuel..............................CATGAS Open loop
Date (2008):.....June 23 - March 09.....................May 19 - August 08
Km/Liter:..........5.79.............................. .............5.62
Peso/Km:..........4.41................................. ..........4.53
% Loss:............27%.............................. .............20%
Peso Savings:.....P39,384.88........................... . .......P36,082.67
% Savings :.......27.50%.................................... ..34.10%

ROI for RAV4 is 21k - Nakakasave na ako ng 15,082.67 pesos
ROI for Outlander is 39k - Nakakasave na ako ng 384.88 pesos

Well, nasa savings mode na ako.

Thank you CATGAS...
Thank you Greenfuel...

More LPG....More peso to your pockets...

[eikichi]

I also have the same experience last week after na stuck ako sa INC traffic jam. driving a 10KM stretch in 7hours. anyways, i also suspected that the solenoid is partially open when i start my car in the morning. nangyari lang ito 2 times and after that normal na ulit ang start ko whenever the engine is cold.

dati kasi napag laruan ko yung switch. cold engine, nag start ako sa gas then after a few seconds auto switch to LPG, then binalik ko ulit sa gas. dito ko na experience na parang lunod ng gas yung carb.

yung na experience ko recently parang palyado ang makina, kumakalog yung engine, pati dashboard pati tambutso. pero after mga 3 minutes bumalik na sa normal. hinde ko tuloy alam kung anu naging problema. ipapa check ko na rin sa greenfuel, this month na kasi ang 1 yr ng kit ko.

ang hinde ko lang talaga mahuli sa lpg is yung pag adjust ng idling, i tried to adjust a few times pero kailangan talaga ng practice. the rest ok naman.

ganitong ganito din experience ko. it started mga 3-4 mos ago pero occasional lang na parang palyado makina, strong engine vibrations, pati dash at tambutso. tapos after a few minutes normalize sya. i thought it must have been stale fuel but i tried loading up with new gas after consuming what's left of my 'stale' fuel pero ganon pa din after a few days.

I forgot to have my kit checked at greenfuel before the warranty expired. it slipped my mind that my kit is already 1 yr last july 19.

[n5110]

Please bring your car for a thorough check up it may be because of clogged lpg fuel line or solenoid filter is clogged due to dirty lpg

Hi Mike, I will schedule a trip to your office this month for a thorough check up. Thanks.

ganitong ganito din experience ko. it started mga 3-4 mos ago pero occasional lang na parang palyado makina, strong engine vibrations, pati dash at tambutso. tapos after a few minutes normalize sya. i thought it must have been stale fuel but i tried loading up with new gas after consuming what's left of my 'stale' fuel pero ganon pa din after a few days.

I forgot to have my kit checked at greenfuel before the warranty expired. it slipped my mind that my kit is already 1 yr last july 19.

kung 3 to 4 months mo na naeexperience ito baka nga hinde na sa gas ang problema. i think it has something to do with the solenoid na located sa engine bay, baka nagmamalfunction during cold starts. anyways I will bring my car to greenfuel this month bago mag expire ang 1 yr. update ko kayo.

BTW in my computation, ROI na rin ako

[straker]

Several months back I dropped by Econogas, before Bigfootoz's transfer, asking them about the oil contamination on SGI kits. According to the senior folks I talked to, such issues are unheard of.

[ghosthunter]

Several months back I dropped by Econogas, before Bigfootoz's transfer, asking them about the oil contamination on SGI kits. According to the senior folks I talked to, such issues are unheard of.

maybe they haven't heard of it or simply they were playing dumb.

[tediber]

recently i just had a really scary situation ....... first i started noticing my fuel mileage went down a bit .... it was usually 7km/liter .... then this past month it started going down below 7 ...... i didn't notice anything out of the ordinary .... i thought it was perhaps due to the fact my scheduled engine oil/transmission oil change was up already ...... one day i ended up with almost an empty tank when i got home ... but the engine was still not "choking" (previous experience was pag malapit na talga empty mag c choke muna 2k rpm ) .....

the next day when i went out pag switch to lpg ayaw na .... as in parang empty na .... taka taka ako since i thought there'd still be a little bit left ..... anyway it was a sunday and off to the refilling station i went ..... buti na lang at habit kong buksan ang trunk to look at the guage .... habang nag fill up napansin ko nag c cloud ata mamaya konti shetttt ang lakas ng singaw .... nag d drip na liquid to my trunk's carpet !!!!! OMFG !!!! pinahinto ko agad filling ..... nde ko alam gagawin ko !!!! it took as a few minutes to figure out what to do as i didn't know pwede mo pala isara yung galing sa tanke .... there is a valve you can close by hand ( YOU SHOULD CHECK THAT IT IS NOT TOO TIGHT PARA ANYTIME PWEDE MO AGAD ISARA ... I THINK THIS IS NOT MEANT TO CLOSED OR OPENED TIGHTLY USING A TOOL LIKE PLIERS )

sunday pa naman so walang mag aayos .... it scared the **** out of me .... me mga 20 liters na nakarga na ....i think mga 1+ liter siguro sumingaw at nag drip onto the carpet.

it turns out to be a loose fitting behind the electrical blue thingy solenoid ba yun ? it opens/shuts the line going to the engine i think ...... siguro over time it caused the fitting to loosen since it's a mechanical movement that may cause vibrations. anyway problem solved.

My fuel mileage went way up again ..... i think i may actually get above 7km/liter .....

[paolorenzo]

Good to hear everything turned out alright tediber.

I also had a scary incident recently. Bumababa na rin yung consumption ko so I had it tuned. Nag-loko na yata yung adjustment knob nung vaporizer, so the diaphragm had a hiccup. After driving about 6kms after the tuning, I was starting to lose power, and I had to pump the pedal to regain power (few seconds delay). Then after about a few hundred meters more... BOOM! All went dead. Had to restart and continue home using gasoline.

Nag-backfire pala, and it resonated to the air filter canister. It turns out the diaphragm stopped working for awhile, so the vaporizer was unable to supply the needed LPG fuel. Nung sobrang lean na nung mix, ayun -- backfire na nga.

Had the vaporizer replaced this morning. I'm still having some rough idling during full stops and while in gear. Baka konting fine tuning pa rin.

[RGmontemayor]

To those who are looking to converting to auto-LPG but has personal doubts about it's safety...

I have been driving my car converted to running on auto-LPG since Aug 2006. The auto-LPG kit type I am using is an open-loop mixer type kit with EFI emulator. It is roughly the same kit used by most lpg fueled taxi cabs in the metro.

I have generally no problems related to it except I have to keep my engine's air intake filter clean more often than otherwise. I have NEVER experienced LPG leaks into the passenger cabin. I only experience one LPG leak but that was contained by the guage seal. The leak was quickly fixed by the LPG installers by tightening the bolts that held the metal pipes to the tank in the trunk.

My car has been driven out of town as far as to Baguio (from Metro Manila) and back running on LPG. I enjoyed driving around Clark & Subic during a long week-end while fueled by LPG the entire time. I have driven up to a speed of 165kph on the Star Tollway while fueled by LPG which is not bad since my top speed achieved with gasoline is also 165kph. I have kept my car maintenance schedule just the same as when the car was still running on gasoline although I could have extended oil change schedule due to the fact that LPG keeps the motor oil cleaner longer than gasoline.

The only downside I have experienced with auto-LPG is the decreased space in my trunk which is not really bad since I still have enough space for a week or two worth of groceries or for a medium sized luggage.

And for those who might say an auto-LPG car might explode if someone crashes from the rear of the vehicle, the auto-LPG fuel tank is much more stronger than the factory gasoline tank is most cars. In the worst case scenario, the LPG tank would just deform but still keep it's contents. A standard gasoline tank would have long ruptured and poured out it's contents on the surrounding area.

So for those who are still deciding, maybe it is already high time to get serious about converting to auto-LPG to help you start saving on the cost of your vehicle's fuel. 40% savings on the cost of fuel is not something you can ignore, right?

good day!

this is a very informative material regarding lpg conversion. anyway, is there a way the lpg conversion people can email me reading materials or pictures of how the lpg tanks were installed on some of the cars they worked on.

im currently driving a 97 rav 4 na dubai version. i'm averaging 4-5km/ltr city driving despite regular maintenance and tuneups. my worry lang is that the rav does not have a trunk and if ever i will convert to lpg, the tank will be exposed to the passengers. are there tanks that can be installed somewhere underneath the car so as to keep the space at the back?

appreciate it if you can email me romanmontemayor*yahoo.com

thanks

[Mile2]

good day!

this is a very informative material regarding lpg conversion. anyway, is there a way the lpg conversion people can email me reading materials or pictures of how the lpg tanks were installed on some of the cars they worked on.

im currently driving a 97 rav 4 na dubai version. i'm averaging 4-5km/ltr city driving despite regular maintenance and tuneups. my worry lang is that the rav does not have a trunk and if ever i will convert to lpg, the tank will be exposed to the passengers. are there tanks that can be installed somewhere underneath the car so as to keep the space at the back?

appreciate it if you can email me romanmontemayor*yahoo.com

thanks

Here's mine done at GreenFuel http://www.greenfuel.com.ph

The toroidal fuel tank




Fuel tank placement underneath Toyota Innova 2007



Very happy with the conversion and ROI came at about 10 months. My LPG kit is now over a year old.

[straker]

maybe they haven't heard of it or simply they were playing dumb.

Clarified with Bigfootoz a few days ago. Only the filter will stop the contaminants from getting into the injectors.

[ghosthunter]

Clarified with Bigfootoz a few days ago. Only the filter will stop the contaminants from getting into the injectors.

There is another filter that can be installed but not generally used. Actually it is a separator, similar to the type used on air compressors to separate the water and oil from the compressed air.

[n5110]

it turns out to be a loose fitting behind the electrical blue thingy solenoid ba yun ? it opens/shuts the line going to the engine i think ...... siguro over time it caused the fitting to loosen since it's a mechanical movement that may cause vibrations. anyway problem solved. ....

dito din nag leak yung lpg ko, sa solenoid na nakakabit sa tanke. teflon lang ang solution and until now no signs of leak ( basehan ko ang ilong ko hehe)

mukang ang talagang common problem natin ay idling. so far after nung last punta ko sa greenfuel nung pinalitan yung vaporizer ko wala na akong naging major na problema. yung idling lang talaga pero hinde naman ako namamatayan.

[tediber]

so far so good wala naman ako na encounter ibang problem .... pansin ko nga lang yung solenoid umiinit .... medyo mainit nakakapasong init .... normal lang ba yun ?

[n5110]

naka energized kasi ang solenoid once in operation ang lpg. mainit din yung sa solenoid ng lpg kit ko.

[ghosthunter]

Hmmm I found this on STARGAS' website... diesel-lpg conversion.

http://stargasphil.com/stargas/diesel.htm

The D-GAS (Diesel Gas Auto System) has been designed and developed by D-Gas Pty Ltd. The system has been designed to reduce diesel exhaust emissions on turbo charged and naturally aspirated diesel engines by improving the diesel combustion making the engine more efficient and lowering exhaust emissions.

Added advantages:

Smoother and Quieter Engine;
Increase in Performance;
Increase in Engine Torque;
Decrease in Diesel consumption;
Reduced Carbon build up in the Engine and Exhaust system
which in turn reduces carbon in the engine oil;
Lower engine oil temperature;
May increase Engine Life.

Click on link for complete text: http://stargasphil.com/stargas/diesel.htm