2007-05-25 15:29:10 · 8 answers · asked by texas mikey 2 in Cars & Transportation ➔ Maintenance & Repairs
because diesel run on Cetane not Octane. Diesel fuel has more BTU's per gallon (about 30% more energy per gallon). The Diesel fuel is used to lubricate the injection pump parts--gas in a dry fuel and would cause the metal parts to score. Diesel fuel is slow burning and is fired from the heat of compression--gas is fired by the spark plug.--so gas would cause the engine to have less power, cause the metal parts to score, and missfire.
2007-05-25 15:39:32 · answer #1 · answered by redrepair 5 · 1⤊ 0⤋
Octane is the usual ignition measurement for gasoline. 100 octane gas has the same ignition characteristics as pure octane, which is an 8 carbon atom petroleum molecule. The higher the octane the higher the temperature required to ignite.
Cetane is the usual ignition measurement for diesel fuel. The higher the cetane, the lower the temperature required to ignite.
You could measure the cetane of gasoline or the octane of diesel, but nobody does.
To answer the question: Could you add a little gas to diesel? Yes. It would be similar to "winterized" diesel. But add too much and it could damage the engine, so it is better to stick with the winterized product at the pump.
Does it make sense to increase the octane of the diesel? NO! You want to increase the cetane which is the same as LOWERING the octane. If the diesel fuel had very high octane it would quit working entirely.
2007-05-25 22:50:24 · answer #2 · answered by Tom H 4 · 2⤊ 0⤋
Diesel fuel is very similar to your vegetable OIL. That's why many "bio fuel" cars are basically diesel engines.
Octane is just one of the aspects of the gasoline. Another is how well it atomizes (OIL does not atomize very well).
Diesel engines are very high compression design. There are many other reasons why you should NOT add any kind of OIL to your gasoline - least of which is that you'll foul up your spark plugs.
====
Higher Octane fuel does not burn slower! It just resist detonating from compression better.
2007-05-25 22:40:21 · answer #3 · answered by Lover not a Fighter 7 · 1⤊ 0⤋
The only reason to mix gas into diesel fuel is to help keep the fuel from gelling in the very cold. It is hard on the o-rings in newer pumps and does nothing for the performance of the engine. You could mix gas with recycled vegetable oil to increase the performance of homemade fuels.
2007-05-25 22:50:43 · answer #4 · answered by Mark H 1 · 2⤊ 0⤋
Diesel has Cetane not Octane. And it is also thicker than gas. The two are not compatible in any way. they are two completley different molecules. Diesel will ruin a gas engine, and gas will ruin a diesel engine. Simple as that.
2007-05-25 22:36:14 · answer #5 · answered by Anonymous · 1⤊ 1⤋
Diesel does not have octane - it has cetane.
The word "octane" can refer to a type of hydrocarbon, or to a measurement of the resistance to ignition of gasoline in which case it is an octane number. The higher the octane number, the slower and more resistant to combustion in a gas engine. A high octane fuel is less likely to suffer from pre-ignition ("pinging" or "knocking") in an internal combustion engine with high compression using a spark plug that is advanced BTDC. A very low octane fuel could combust BTDC causing severe engine damage.
Gasoline or sometimes jet fuel is frequently added to diesel fuel in cold climates to prevent gelling of the diesel, but it won't enhance performance. Jet fuel contains naptha (especially Jet-B) and that thins the diesel in cold climates.
Diesel has a higher specific heat value (measured in BTU's or calories per unit of volume) than gasoline, so adding gas to diesel will only rob your engine of performance. In other words, there is more heat per gallon of diesel than there is in gasoline.
Both octane and cetane are highly refined isomeric liquid hydrocarbons with a known ignition value, therefore the octane and cetane numbers are referenced to that.
2007-05-25 22:32:36 · answer #6 · answered by minefinder 7 · 2⤊ 2⤋
You could probably put a small amount of gas in your diesel, but the only thing it might do is burn the ends off of your injectors if you put too much in. If you want to make it burn a little hotter put a quart of automatic transmission fluid in your tank, this will help burn off any carbon deposits in your combustion chambers, but again, don't put too much in, I used to put a quart in a 150 gallon tank and it worked fine. By the way, Jet Fuel is diesel, just slightly more refined, in fact most jets can run on regular diesel.
2007-05-25 22:41:16 · answer #7 · answered by Gordon S 5 · 2⤊ 1⤋
I would use diesel conditioner instead.
2007-05-25 22:35:41 · answer #8 · answered by Bruce 4 · 0⤊ 0⤋