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#3196292 - 11/24/13 04:37 AM Gasoline diesel engines
Exhaustgases Offline

Registered: 12/18/11
Posts: 42
Loc: wa
I'd like to read some stories about this. Real stories that is.

#3196340 - 11/24/13 07:09 AM Re: Gasoline diesel engines [Re: Exhaustgases]
skyactiv Offline

Registered: 03/02/13
Posts: 1379
Loc: The Midwest
Originally Posted By: Exhaustgases
I'd like to read some stories about this. Real stories that is.

You OK?
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

#3196376 - 11/24/13 08:09 AM Re: Gasoline diesel engines [Re: Exhaustgases]
fdcg27 Offline

Registered: 09/25/09
Posts: 11268
Loc: OH
There are two possible scenarios.
One would be using diesel in a spark ignition engine.
This is common in parts of the world where diesel is more readily available than gasoline, like Cuba.
You start the engine on gasoline and then switch to diesel after it warms up. This works with old, low compression engines.
It might not work as well with more modern engines, since diesel has very low octane.
The second possibility would be a compression ignition engine using gasoline as a fuel. This has been tried as well and there is some serious work going on to evaluate such designs for production.
Of which were you thinking?
12 Accord LX 36K PP 0W-20
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01 Focus ZX3 112K M1 5W-20
95 BMW 318iC 152K Defy 10W-40

#3196450 - 11/24/13 09:08 AM Re: Gasoline diesel engines [Re: Exhaustgases]
Cardenio327 Offline

Registered: 11/30/09
Posts: 710
Loc: Oaxaca, Mexico
About 20 years ago a neighbor had a large antique Farmall that started on gasoline and ran on diesel. Had two levers that had to be moved at the same time to switch it over. If I understand right one of the levers closed off auxiliary combustion chambers with poppet valves increasing compression and shutting off vacuum flow through the carburetor. The other lever apparently started the direct injection of the diesel fuel.

One time he went by the house being towed. Every time he tried to start it, it veered for the ditch. He had mistakenly hooked the power steering hoses up backwards, and the electric starter didn't have enough force to turn the motor that way.
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#3319374 - 03/21/14 08:49 PM Re: Gasoline diesel engines [Re: Exhaustgases]
artificialist Offline

Registered: 09/23/07
Posts: 7714
Loc: Florida
In David's Farm, he operates an engine that can use gasoline and diesel fuel.

Unfortunately, it appears that it can't be run at full power on gasoline.

The idea was that the compression could be lowered in gasoline mode, and that would make the starter do less work. Also, gasoline engines from back then would fire up more quickly than diesels.
2010 Lancer Ralliart Sportback

#3909899 - 11/06/15 11:04 PM Re: Gasoline diesel engines [Re: Exhaustgases]
jmaster Offline

Registered: 09/19/09
Posts: 274
Loc: ann arbor, mi
and then there were gasoline compression ignition engines.
01 Mustang Bullitt mobil5k 5w30-break-in, Redline zdp Bosch D+, AMS ATF, Torco 80w90 RGO
97 E350ext 7.3PS 4.10 gears|Mag 1 5w40 syn LM mos2, Bosch D+