Auto-LPG Conversion Thread

**ghosthunter** · January 8th, 2009 10:40 AM

Originally Posted by quan2boy

Question lang. How often do we need to have our LPG system serviced?

I just noticed that every 1 or 2 months, my engine would stall immediately upon switching to LPG (either via the auto-switch at 2000rpm or pressing the button). When I bring the car back for service, Greenfuel will almost just clean the filter and the car would be ok again. Any ideas? You guys experience the same? Hassle din kasing magpabalik-balik sa shop that often...

Thanks in advance.

Depends on the LPG you are getting I think. Some of the LPG refilling stations seems to be "dirty" or contaminated with oil due to non-cleaning of the storage tank. Older style venturi LPG systems will handle it with no problems but SGI systems tend to get clogged which requires some cleaning.

An in-line filter or separator can help but periodic cleaning it still required.

**Mile2** · January 8th, 2009 03:05 PM

Originally Posted by quan2boy

Question lang. How often do we need to have our LPG system serviced?

I just noticed that every 1 or 2 months, my engine would stall immediately upon switching to LPG (either via the auto-switch at 2000rpm or pressing the button). When I bring the car back for service, Greenfuel will almost just clean the filter and the car would be ok again. Any ideas? You guys experience the same? Hassle din kasing magpabalik-balik sa shop that often...

Thanks in advance.

It is likely you are getting an intermittent sticky Valtek rail injectors due to oily LPG contamination. One sign that your Valtek rail is failing was the rubber hose from the reducer/condenser to the injector rail was slightly bulging (medyo maga).

If you will notice, once they service your kit; they will remove the hose going to the rail and at this instance the actuators will get rested and will flex back to its original position, freed from getting stuck. Filter cleaning will also help, but it seems base from my experience, hose dismantling and re-installation alone helps restore injector's pistons to normal positions.

Another sign that you are getting oily LPG was your spark plugs will have black carbon deposits. A clean LPG fed into the engine will yield only powdery white deposit on the spark plugs.

Note: Slowly bleed bulging LPG hose before removal by loosening the clamps and slowly rotating the hose back and forth to avoid loud gas pressure noise.

**aamd** · January 24th, 2009 05:27 AM

Kumusta na kabayan?

i just want to inform you that based on my computations,

if the price difference of Unleaded and LPG would be between 5 to 8 pesos, then i think it is better to switch to unleaded. This is for the simple reason that the mileage you can get between unleaded and LPG would be equal. In other words, there will be no more savings.

With that, the only consolation we LPG users can get is cleaner emission. As to the long term effect of LPG use for our engine, that i could not comment yet because i am only on my 8th month in using LPG.

**ghosthunter** · January 24th, 2009 09:33 AM

Personally I think the current increases in price for LPG is totally artificial, driven by greedy oil companies looking for ways to circumvent the price control over gasoline and diesel.

As for the current users of auto-lpg, remember that auto-lpg is not the solution to fuel prices and shortages. It simply gave us the power to choose which fuel we want to use for our vehicles. So when the time comes when its more economically viable to use gasoline over LPG, we can simply do so at the push of a button on our dashboard.

**n5110** · January 24th, 2009 11:08 AM

Originally Posted by quan2boy

I just noticed that every 1 or 2 months, my engine would stall immediately upon switching to LPG (either via the auto-switch at 2000rpm or pressing the button). When I bring the car back for service, Greenfuel will almost just clean the filter and the car would be ok again. Any ideas? You guys experience the same? Hassle din kasing magpabalik-balik sa shop that often...

Thanks in advance.

i notice erratic idling sometimes kaya ginagawa ko, linis ng air filter, pag ayaw pa rin linis ng lpg filter, pag ayaw pa rin check ko spark plugs, ngayon ayaw pa rin, kaya nag ttrail and error na ako sa lpg mixture. mahirap kasi pag ikaw lang magisa ang nag aadjust dahil walang taga check ng rpm sa loob. hirap din kasi bumalik sa greenfuel tapos within 5-10mins of fine tuning aayos na ulit. dapat talaga matuto na rin tayo mag DIY. masyadong sensitive ang lpg.

Originally Posted by aamd

if the price difference of Unleaded and LPG would be between 5 to 8 pesos, then i think it is better to switch to unleaded. This is for the simple reason that the mileage you can get between unleaded and LPG would be equal. In other words, there will be no more savings.
.

+1. wala talagang kwenta gobyerno natin, nag check ako sa counterparts ko sa thailand and malaysia, average pump price nila nasa 10 pesos lang.

i still use my lpg kasi hinde ko pa nababawi ang installation cost. btw im only on my 6th month on lpg

**Mile2** · January 24th, 2009 03:54 PM

Originally Posted by aamd

Kumusta na kabayan?

i just want to inform you that based on my computations,

if the price difference of Unleaded and LPG would be between 5 to 8 pesos, then i think it is better to switch to unleaded. This is for the simple reason that the mileage you can get between unleaded and LPG would be equal. In other words, there will be no more savings.

With that, the only consolation we LPG users can get is cleaner emission. As to the long term effect of LPG use for our engine, that i could not comment yet because i am only on my 8th month in using LPG.

I agree, my computation was if the price difference was down to 6-7 pesos then I will switch back to unleaded

But I guess the present situation was artificial, eventually prices will stabilize with a greater margin.

**rpxhost** · January 25th, 2009 02:40 PM

Help"

1. Since I used LPG, I left my gasoline tank dry

2. One day, i loaded petrol but then it would not start. (the engine would start but no gasoline went to engine)

3. What should I do???? somebody said the Fuel pump needs replacement.

Any ideas?

**n5110** · January 25th, 2009 02:58 PM

possible na masira talaga ang fuel pump kung more than 95% of the time naka lpg ka and leave your tank almost empty. dalhin mo na lang sa trusted mechanic mo para ma check ang fuel pump baka corroded na.

my practice. i always have 1/4 petrol in my tank and always cycle at least 2 kilometers daily para less chance mangyari yug ganyan.

**quan2boy** · January 25th, 2009 03:43 PM

Originally Posted by n5110

i notice erratic idling sometimes kaya ginagawa ko, linis ng air filter, pag ayaw pa rin linis ng lpg filter, pag ayaw pa rin check ko spark plugs, ngayon ayaw pa rin, kaya nag ttrail and error na ako sa lpg mixture. mahirap kasi pag ikaw lang magisa ang nag aadjust dahil walang taga check ng rpm sa loob. hirap din kasi bumalik sa greenfuel tapos within 5-10mins of fine tuning aayos na ulit. dapat talaga matuto na rin tayo mag DIY. masyadong sensitive ang lpg.

Thanks n5110. Dapat nga siguro matuto na tayo mag DIY ng LPG natin. Oks na ulit yung kotse ko. Kahapon lang kasi ako nagka-chance bumalik sa Greenfuel and tama ka, in less than 10 minutes, ayus na sya ulit. Although, thanks na rin sa Greenfuel for maintaining a good pool of technicians. Lalo na ngayon, nasa Australia na pala si Ian! Kakaalis lang nung Friday! Good luck, Ian!

**quan2boy** · January 25th, 2009 03:52 PM

Originally Posted by aamd

Kumusta na kabayan?

i just want to inform you that based on my computations,

if the price difference of Unleaded and LPG would be between 5 to 8 pesos, then i think it is better to switch to unleaded. This is for the simple reason that the mileage you can get between unleaded and LPG would be equal. In other words, there will be no more savings.

With that, the only consolation we LPG users can get is cleaner emission. As to the long term effect of LPG use for our engine, that i could not comment yet because i am only on my 8th month in using LPG.

Mga nasa P5 price difference nga rin ang estimate ko. And I agree on the cleaner emission argument. Sabi nga sa radio the other day, we have lesser pollution now vs last year and one of the reasons given was the use of auto LPG...