[SteinarN]

$this->bbcode_second_pass_quote('MarkJ', '')$this->bbcode_second_pass_quote('SteinarN', 'M')arkJ, have you ever been driving a modern diesel?

[Tanada]

$this->bbcode_second_pass_quote('MarkJ', '')$this->bbcode_second_pass_quote('SteinarN', 'M')arkJ, have you ever been driving a modern diesel?

[yesplease]

$this->bbcode_second_pass_quote('Tanada', 'T')hat seems odd, most of the Propane delivery trucks I have seen here in MI are propane burners, keeps things simpler for the company and all that. They do have a small liquid fuel tank in case they need to go somewhere on regular fuel, but burn mostly propane.

[Tanada]

$this->bbcode_second_pass_quote('yesplease', '')$this->bbcode_second_pass_quote('Tanada', 'T')hat seems odd, most of the Propane delivery trucks I have seen here in MI are propane burners, keeps things simpler for the company and all that. They do have a small liquid fuel tank in case they need to go somewhere on regular fuel, but burn mostly propane.

[yesplease]

$this->bbcode_second_pass_quote('MarkJ', 'T')he Urban Cycle test results of the Volkswagen Jetta TDI are pretty close to that of the EPA numbers. The Extra Urban results are generally the numbers that are substantially higher in comparison to EPA and real world results. (Excluding Volkswagen fanatics, diesel fanatics, conservative drivers, hyper-milers, paid testers etc)

[yesplease]

$this->bbcode_second_pass_quote('Tanada', '')$this->bbcode_second_pass_quote('yesplease', '')$this->bbcode_second_pass_quote('Tanada', 'T')hat seems odd, most of the Propane delivery trucks I have seen here in MI are propane burners, keeps things simpler for the company and all that. They do have a small liquid fuel tank in case they need to go somewhere on regular fuel, but burn mostly propane.

[Tanada]

$this->bbcode_second_pass_quote('yesplease', '')$this->bbcode_second_pass_quote('Tanada', '')$this->bbcode_second_pass_quote('yesplease', '')$this->bbcode_second_pass_quote('Tanada', 'T')hat seems odd, most of the Propane delivery trucks I have seen here in MI are propane burners, keeps things simpler for the company and all that. They do have a small liquid fuel tank in case they need to go somewhere on regular fuel, but burn mostly propane.

[yesplease]

It's one of the regulatory/semantic deals based on what I've read. Something that's still technically a diesel engine, even though it's been converted to natural gas. I dunno why offhand but maybe it's the same reason why drivers in CA or other states w/ smog would drop a gasoline engine in a vehicle registered as a diesel.
$this->bbcode_second_pass_quote('Wikipedia', 'I')t should also be noted that most major manufacturers of medium speed engines make natural gas fueled versions of their diesel cycle engines, which in fact operate on the Otto cycle, and require spark ignition, typically provided with a spark plug.

[Denny]

Westport Technologies partners with Cummins and some other diesel engines to use compressed natural gas. This explains the application for heavy duty diesel applications. See Westport- Direct Injection

Technology Description
High Pressure Direct Injection relies on late-cycle high-pressure injection of a gaseous fuel, such as natural gas, into a combustion chamber of an internal combustion engine. The natural gas is injected at the end of the compression stroke, just like the diesel fuel is injected at the end of the compression stroke in a diesel engine. Under the pressures found in the combustion chamber of a normal diesel engine, natural gas requires higher ignition temperature than diesel (circa 800° C vs. 500° C) to maintain acceptable ignition delay period of less than 1 millisecond. To assist with the ignition of natural gas, a small amount of diesel fuel is injected into the engine cylinder using the same injector followed by the main natural gas fuel injection. This diesel fuel acts as a pilot or “liquid spark plug” which ignites rapidly the hot combustion products then igniting the natural gas.

HPDI allows diesel-cycle operation with over 90% replacement of diesel fuel. Compared to other natural gas engines, because of Westport's direct injection approach, HPDI also eliminates both part-load throttling and limits on torque due to the onset of knock. Diesel pilot-ignition has two distinct advantages: durability and ignition quality. Diesel injection systems are inherently durable as demonstrated by conventional experience. In addition, multiple ignition sites can be easily arranged (close to one per gas jet).

[emersonbiggins]

$this->bbcode_second_pass_quote('vision-master', '')$this->bbcode_second_pass_quote('', 'T')he EPA rates the 2009 Jetta TDI @ 29/40 (Automatic) 30/41 (Six Speed Manual)

[wisconsin_cur]

$this->bbcode_second_pass_quote('biofuel13', '')$this->bbcode_second_pass_quote('wisconsin_cur', '
')Why did you take it to the dealer?

[mos6507]

$this->bbcode_second_pass_quote('Denny', 'W')estport Technologies partners with Cummins and some other diesel engines to use compressed natural gas. This explains the application for heavy duty diesel applications.

[MarkJ]

$this->bbcode_second_pass_quote('SteinarN', '')$this->bbcode_second_pass_quote('MarkJ', '')$this->bbcode_second_pass_quote('SteinarN', 'M')arkJ, have you ever been driving a modern diesel?

[yesplease]