Diesel Vs. Gas And E85
- Thread starter Alin
- Start date
Spamby
Meat Product Toy
No. Because if the way a Diesel engine works, high volatile fuels no worky. They use high compression to squeeze the bang instead of spark.
You can use biofuels like peanut oil, vegetable oil, etc. in place of petroleum products.
Actually the Diesel engine was developed in the 1800's and originally design to work on peanut oil. It's just that petroleum came along and was much cheaper and more plentiful.
Spamby
Meat Product Toy
More fuel.
Actually you can run gas in it it's just that it needs the oily mess diesel is to lube.
I forgot in a pinch you can use gas and then add some oil to it.
Spamby
Meat Product Toy
Alin
Diehard Car Enthusiast!
Yeah he adds a little bit. I wanna say about half a quart? With every single full tank fill up. Ill ask him today why. Remember. He grew up in europe in the 80/90s. Things might be SLIGHTLY different! :lol: German cars are the best in his eyes.
He adds oil to the gas? Didn't you say it's a Jetta TDI? Those are diesel. If he's adding oil to a tank of diesel,
I'd assume that is indeed for lubrication purposes. I would never fill a diesel tank with gasoline and oil, I'm sure it
would go kablooey.
People with diesel trucks run vegetable oils, grease from deep fryers, used motor oil, etc. as fuel. They generally
have to be filtered by some method. My coworker has an F-250 that he has a 65 gallon auxiliary tank for vegetable
oils, motor oil, etc. Besides filtering (he uses a centrifuge), the only other consideration is the temperature of the fuel.
In many cases, if you are going to run an auxilary fuel system in this manner, you need a heater of sorts.
There's all kinds of options, some even route coolant lines through the auxiliary tank to heat the fuel. If not
warm enough, the fuel is too thick for the injectors and pumps. Either way, even with heating the fuel, you
generally need to start the engine on diesel and then once you've reached operating temperature, you can
switch over to the oils.
Some people add a small amount of diesel, kerosene or sometimes gasoline to a large tank of waste oil to
thin the mix. Others run what is known as "Waste85", 85% waste oils 15% diesel.
I'd assume that is indeed for lubrication purposes. I would never fill a diesel tank with gasoline and oil, I'm sure it
would go kablooey.
People with diesel trucks run vegetable oils, grease from deep fryers, used motor oil, etc. as fuel. They generally
have to be filtered by some method. My coworker has an F-250 that he has a 65 gallon auxiliary tank for vegetable
oils, motor oil, etc. Besides filtering (he uses a centrifuge), the only other consideration is the temperature of the fuel.
In many cases, if you are going to run an auxilary fuel system in this manner, you need a heater of sorts.
There's all kinds of options, some even route coolant lines through the auxiliary tank to heat the fuel. If not
warm enough, the fuel is too thick for the injectors and pumps. Either way, even with heating the fuel, you
generally need to start the engine on diesel and then once you've reached operating temperature, you can
switch over to the oils.
Some people add a small amount of diesel, kerosene or sometimes gasoline to a large tank of waste oil to
thin the mix. Others run what is known as "Waste85", 85% waste oils 15% diesel.
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Spamby
Meat Product Toy
Yep. I've heard of that. Some guys do and others don't.
On the subject of used oil, I don't think I would because of the trash that might be in it.
Spamby
Meat Product Toy
Arguably, the diesel fuels today are cleaner with less lube and this may be why he does it.
Nothing wrong with German cars, they have their quirks but so does every other auto.
My coworker's centrifuge does a great job separating out all the trash in it.
Brooksie365
New member
Diesel engines are much more efficient. With the average gas engine only using 18% of the energy produced by combustion diesel use a minimum of 30% of that energy. I went to school for diesel and just recently left the field and i have never heard of anyone adding oil to there fuel. The oil will add a resistance to burn and actually create a lot more blow by which creates carbon. When the resistance to burn is to high the combustion will not happen when the piston is in the proper position causing loss of power. Diesel fuel is rated in cetane not octane.
Alin
Diehard Car Enthusiast!
Hmmm very interesting. Well do you know if in fact the oil does lubricate the injectors then?
Brooksie365
New member
Injectors are lubricated by the fuel. If you have every gotten diesel on your hand you will notice it leaves a film like texture on your hand. which is more than sufficient due to the simplicity of an injector. Diesel has more of an oil base than gas. it is closer to crude oil then gas is. that is why diesel was cheaper than gas before. now that they have put all types of over the road tax's on it its more expensive.
To increase the power in a diesel u need to stuff as much air/ fuel possible into the cylinders at the proper piston position(injector timing) obviously with the proper air/fuel ratio valve timing ect. Most likely adds oil to the fuel for better lubrication in the injector pumps/ injectors. Most diesel injector pumps p100, vp44,cp3,cp4 ect.. The pumps are lubricTed by the natural lubricity of the diesel and in today's new low sulfur Eco friendly bs diesel u loose power and lubricity. Most people recommend using ATF to add to the diesel for lubricity.. As for extra power basically the more injection timing without loosing the "swirl" effect in the cylinder the longer the fuel a
has to get hot makes for more compression more power...
has to get hot makes for more compression more power...
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