Duel Fuel CNG Conversion

[Franklie]

Erratic price of gasoline has made me research CNG duel fuel as an option.
The 2 scuba sized tanks in the rear are a big negative. If I could mount a spare on back and use recessed spare tire hull for tank it might work better.
You tube has a few vids on it too. 1999 Expy featured

CNG conversion on my Ford Expedition by Mr. Energy - YouTube
What do you all think?

http://youtu.be/U0CrrQYdiKM

 

[GAINMOB]

but not all places sell natural gas for vehicles...not to say i look for it but i've never seen a sign for it...this would be a great idea if its a city car...local use only...cant imagine taking a road trip in it

 

[tonydiv]

There are very similar propane conversions available, I was looking in to them. Not unlike a gas grill, the only significant difference between cng and propane is the orifice size. You need less propane to get the same power.

There is also a radial 'doughnut' tank available the fits in the spare tire area under the truck.

Also remember that the tank has to be rated for the appropriate gas and pressure, you just can't grab any old tank and put cng or propane in it.

 

[tallsville]

i know some of the offroaders around here have done a propane conversion. and they seem very happy with it.

 

[SourMashII]

To achieve full efficiency with Propane, you need 14:1 compression.

That's about all I have held onto from my research. It'll work in an 8 or 9:1 engine... but you will experience a lack of power sensation.

 

[driverman1]

I wish our car manufactors would convert to cng. If I understand correctly the US is like the Saudi Araba of natural gas. If so then w could bring our guys and gals home from the middle east and let them continue to fight each other like they have for thousands of years.

 

[SourMashII]

We have enough Oil here to be self suficient too.

The problem isn't lack of oil, it's the lack of legal ability to refine it. We don't have one refinery here.

 

[toms89]

We have enough Oil here to be self suficient too.

The problem isn't lack of oil, it's the lack of legal ability to refine it. We don't have one refinery here.

From Wikipedia -

Oil refining in the United States

In the 19th century, refineries in the U.S. processed crude oil primarily to recover the kerosene. There was no market for the more volatile fraction, including gasoline, which was considered waste and was often dumped directly into the nearest river. The invention of the automobile shifted the demand to gasoline and diesel, which remain the primary refined products today. Today, national and state legislation requires refineries to meet stringent air and water cleanliness standards. In fact, oil companies in the U.S. perceive obtaining a permit to build a modern refinery to be so difficult and costly that no new refineries have been built (though many have been expanded) in the U.S. since 1976. More than half the refineries that existed in 1981 are now closed due to low utilization rates and accelerating mergers.[21] As a result of these closures total US refinery capacity fell between 1981 to 1995, though the operating capacity stayed fairly constant in that time period at around 15,000,000 barrels per day (2,400,000 m3/d).[22] Increases in facility size and improvements in efficiencies have offset much of the lost physical capacity of the industry. In 1982 (the earliest data provided), the United States operated 301 refineries with a combined capacity of 17.9 million barrels (2,850,000 m3) of crude oil each calendar day. In 2010, there were 149 operable U.S. refineries with a combined capacity of 17.6 million barrels (2,800,000 m3) per calendar day.[23]

In 2009 through 2010, as revenue streams in the oil business dried up and profitability of oil refineries fell due to lower demand for product and high reserves of supply preceding the economic recession, oil companies began to close or sell refineries.

 

[GAINMOB]

there are 3 major refineries in CA...theres 1 in alaska that i know of and have seen personally...and im sure there are some in texas...louisiana

 

[tallsville]

freeway as far as i know texas has the most and biggest refineries. if you look at wikipedia CA has 20 and TX has 29

 

[tonydiv]

I have never read about anyone complaining about a lack of power in a dual fuel conversion, whether it's propane or cng.

I think that the 14 to 1 compression thing must be for diesel applications.