Auto-LPG Conversion Thread

[abetg]

The smell would be normal since venturi lpg systems do have some "leak-down" from the intake manifold.

parang hinde normal ito, baka may leak better have it check boss. yung sa akin i can see white residue sa vaporizer pero walang amoy, not sure if this is leak. minomonitor ko pa.

about the tachometer reading parang hinde naka adjust ng tama yan, yung sa akin naka set sa 700-800 idle without AC pag naka AC naman di nalalayo, minsan nag ffluctuate yung idle, nag ddrop at 400 pero madali naman bumabalik sa 700 with or without AC. baka airfilter niyo madumi na.

tnx GH and n5110. just cleaned the air filter recently pero ganun pa rin rpm reading. the air filter has 2500km mileage already. is the rpm setting should be the same for both gasoline and lpg? running on gasoline, my rpm is 700 at idle.

[abetg]

I agree periodic check-ups have to be done to make sure that LPG filled in your car is clear of residue. We do that maintenance here at our station.

will pay you a visit one of these days kahit medyo out of the way ako. used to refill at regasco along quezon ave. on my way to work * 29.60 a liter. medyo di gaano malinis place with pools of water everywhere. di kaya mag-seep ito sa underground tanks nila? and they place grease on the tip of their nozzle before plugging it unto the car's refilling plug. is this a good practice?

[BlueVespa]

I think NGK has LPG-specific plugs. The plugs feature a platinum chip in the ground electrode and a fine wire Iridium centre electrode. The thread and other metal parts are plated differently to reduce the possibility of a negative reaction to LPG. Part numbers are BKR6EIX-LPG and BPR6EIX-LPG.

I don't know if these are different from the "suitable for LPG" plugs on the Bosch site...

[BlueVespa]

I think NGK has LPG-specific plugs. The plugs feature a platinum chip in the ground electrode and a fine wire Iridium centre electrode. The thread and other metal parts are plated differently to reduce the possibility of a negative reaction to LPG. Part numbers are BKR6EIX-LPG and BPR6EIX-LPG.

Unfortunately I think they are available only in the UK...

[bigMIKE]

will pay you a visit one of these days kahit medyo out of the way ako. used to refill at regasco along quezon ave. on my way to work * 29.60 a liter. medyo di gaano malinis place with pools of water everywhere. di kaya mag-seep ito sa underground tanks nila? and they place grease on the tip of their nozzle before plugging it unto the car's refilling plug. is this a good practice?

Putting grease around the nozzle is not a common practice
The water pool should not be able to get into the underground tank as the tank is completely sealed and pressurized.
Oil residues are inherent in lpg itself it should be filtered by the lpg supplier or the station owner. Filters in the vehicle should be the last line of defense.

[n5110]

tnx GH and n5110. just cleaned the air filter recently pero ganun pa rin rpm reading. the air filter has 2500km mileage already. is the rpm setting should be the same for both gasoline and lpg? running on gasoline, my rpm is 700 at idle.

ideally it should be the same (ata). my car rpm setting is almost the same on gas and lpg with normal idle drops pag lpg ang gamit pero hinde naman ako namamatayan. anu ba ang mileage niyo using lpg?

The smell would be normal since venturi lpg systems do have some "leak-down" from the intake manifold.

at the moment hinde ko na eexperience ito. how do we identify a "leak down" from a real lpg leak in the system? iba ba ang smell or we just monitor the mileage? thanks.

[n5110]

Hello to all LPG users,
based from my current lpg mileage on 80% highway driving * 80Kph. i can only extract roughly 10km/li of lpg assuming i have a full tank of lpg is this normal?
another question, tama bang pilitin pang pumasok ang lpg once nag automatic na? sabi ng attendant sa clean fuel pwede pa raw i sagad basta gagamitin agad (siguro to lessen the pressure). i ask the attendant to stop sa automatic. katakot eh.

[bigMIKE]

Hello to all LPG users,
another question, tama bang pilitin pang pumasok ang lpg once nag automatic na? sabi ng attendant sa clean fuel pwede pa raw i sagad basta gagamitin agad (siguro to lessen the pressure). i ask the attendant to stop sa automatic. katakot eh.

Not not recommended as this might damage the multivalve, solenoid valves and regulators More importantly, there is additional stress on the tank

[n5110]

Thanks Mike. I will tell them not to overfill my tank. Just wondering why I cannot fill my tank more than 29li (for a40li toroidal tank). the last time i did was to finish the whole tank until i can feel that the car is choking and loosing power already. any reason for this? Thanks.

[ghosthunter]

Hello to all LPG users,
based from my current lpg mileage on 80% highway driving * 80Kph. i can only extract roughly 10km/li of lpg assuming i have a full tank of lpg is this normal?

depends on your previous fuel mileage on gasoline.

another question, tama bang pilitin pang pumasok ang lpg once nag automatic na? sabi ng attendant sa clean fuel pwede pa raw i sagad basta gagamitin agad (siguro to lessen the pressure). i ask the attendant to stop sa automatic. katakot eh.

Sometimes the LPG pump stops prematurely due to low pressure at the supply side (example, too many vehicles refueling at the same time). Check the fill level your tank if you can see the mechanical guage. Typically the safe cut off is at 85% capacity. My tank cuts of at 90%.

[n5110]

my fuel mileage for gas * highway is around 12-13km/li. anyways this is not a major issue naman. just want to check other lpg users.

its not easy to check the mechanical guage because during the installation at greenfuel i ask them why the mechanical guage is facing inside rather than outside so by opening the cover you can just bend and can easily see the guage. they said they need to install the tank in this orientation so that during uphill incline the lpg will go to the back where the source line is located. in short para hinde ka mabitin at maubusan in case of low level lpg. so now im relying more on the digital guage at the dash lang. my highest cut off is at 72% lang.

[abetg]

ideally it should be the same (ata). my car rpm setting is almost the same on gas and lpg with normal idle drops pag lpg ang gamit pero hinde naman ako namamatayan. anu ba ang mileage niyo using lpg?

my FC on lpg is 8-10% higher compared to gasoline: 10km/l on gasoline and 9.2km/l using lpg (city driving).

[XOOMaster]

will pay you a visit one of these days kahit medyo out of the way ako. used to refill at regasco along quezon ave. on my way to work * 29.60 a liter. medyo di gaano malinis place with pools of water everywhere. di kaya mag-seep ito sa underground tanks nila? and they place grease on the tip of their nozzle before plugging it unto the car's refilling plug. is this a good practice?

Most LPG Stations have tanks above ground so water seeping in should not be a problem. This is the thing with grease on the nozzle. The main reason I think they do this is to protect their nozzles "teeth" from wear and tear. since LPG is very dry this causes the brass teeth in the nozzles to wear down very easily thus grease is applied to prevent this. THOUGH if this is done, they should clean your filler unit if the grease transfers there.

BTW, to all tsikoters who have BIONET type filler units, DOE has been cracking down stations who have adapters for Korean filler unit. They have come out with a ruling to only use Italian Type filler unit. We do replacements of filler units if interested! Thanks!

[Mile2]

Side note:
http://www.bosch.com.au/content/language1/html/5673.htm

Check the "Suitable for LPG" note on these set of sparkplugs... do they know something we don't?


.

Base on the picture it indicates these are colder plugs. The metal case is thicker than normal plugs.

I have these assorted plugs in my hand;

My stock plug
Denso K20HR-U11 (Copper, gap 1.1)
NGK LFR6C-11 (Copper, gap 1.1)
Denso IKH20 (Iridium, gap 1.1)

Comparing the above stock plugs with equivalent colder plugs originally for Evo IX Turbo.

Denso IKH22 (Iridium, gap 0.8) - thick metal case same as Bosch Super Plus.
NGK ILFR7H (Iridium, gap 0.8) - thick metal case same as Bosch Super Plus.


Comparing Denso's IKH20 and IKH22 (both Iridium) the only difference is the metal case thickness and the gap.

Life of the spark plug on LPG really depends on the heat range, Denso and NGK recommends one step colder plugs and smaller gap in their website.

Problem was, these manufacturers position their colder plugs always on their high end Iridium plugs and racing plugs which cost 9-10 times than normal copper plugs.

[Mile2]

I think the LPG filter isn't design to separate liquids from the LPG itself.

Cars equipped with venturi LPG systems aren't affected. SGI systems with their injectors are the ones that will have problems if the oil contamination is severe enough.

I was at GreenFuel this morning, Mike showed me the oil contaminants coming from my LPG tank after he bleed some LPG vapor from the vaporizer to a white cloth and evidently there's really too much oil.

There was also a Camry there this morning with the same problem, and a vios taxi as well.

I went to GreenFuel due to weird idling problem, jerking, loss of power and occasional stalling and the culprit is lpg oil contamination.

It was a good thing that GreenFuel is now authorized to calibrate and clean Valtek rail (though they already changed my rail assembly twice at no extra cost) and all my previous problem are now solved. For now I will try to monitor my FC since I can now drive on LPG without hesitations.

BTW, the oil contaminant that was so severe, I do got it from CleanFuel E. Rodriguez which is the sole station I do refills. but not anymore

[jov78ph]

To all LPG users,

Can you at least give us the LPG refilling station that has oil contamination on their tanks just so we can avoid the hassle what the problem will do to the FC's of our vehicles. Can you just give us list of stations which you can recommend to be free of oil contamination. Mike please recommend us this station. Thanks

[Mile2]

Since my LPG conversion last July too many problem has evolve and for a while I thought it was the spark plugs, so since then have I tried all sorts of spark plug equivalent to my stock plugs including the expensive Iridium plugs but today I saw the culprit - LPG oil contaminants.

Today after GreenFuel fixed my idling problems, I ran around 60Kms and check my spark plug firing ends and they are clean and whitish, while my previous plugs during the worse idling problem has black deposits and this is due to oil contaminats.

Again, I thank GreenFuel people for their willingness to solve my problem even its not their fault anymore. It cost them lots of manpower hours and to think they have replaced twice my rail previously. When Lorna did a follow call on me 2 weeks ago I told them I switched back to 100% gasoline because of my idling problem on LPG and I have no time to drop to their shop, Mike even offered to drop at my workplace last week just to fix my problem but I insist to have it fix at their shop which was done today. Again thanks to GreenFuel

[straker]

BTW, to all tsikoters who have BIONET type filler units, DOE has been cracking down stations who have adapters for Korean filler unit. They have come out with a ruling to only use Italian Type filler unit. We do replacements of filler units if interested! Thanks!

Can you provide pictures of this DOE approved bayonet filler? I've seen at least two already. I'm inclined to use this as it will fit into the main fuel cap compartment.

On a different front, I've receive a response from our insurance company. In that reply, "We are still studying the matter and we will inform you at the soonest time possible. We advise that you refrain from taking this initiative as it will void your policy."

The world seems to be against me these days

[straker]

Where did the oil came from?

Assuming that SGI is vulnerable, what's the technological solution? Frequent visits to the shop for oil draining is a setback, financially at least.

[XOOMaster]

Can you provide pictures of this DOE approved bayonet filler? I've seen at least two already. I'm inclined to use this as it will fit into the main fuel cap compartment.

On a different front, I've receive a response from our insurance company. In that reply, "We are still studying the matter and we will inform you at the soonest time possible. We advise that you refrain from taking this initiative as it will void your policy."

The world seems to be against me these days

Hi straker! Unfortunately there are No Bayonet filler approved. I was not able to clarify on my previous post that Bayonet filler is Korean filler. You would need to change it to Italian/Turkish type filler units to be able to fill up. "I don't know if this is a momentary thing from the DOE"