At one time information was released suggesting that a small amount of gasoline mixed with diesel fuel for use in cold weather was an acceptable practice. This information was eventually retracted due to conditions that may result from such a mixture. First and foremost is a safety factor. The gasoline fumes from gasoline are very rich and there is not enough oxygen available for a spark generated at the filler neck to ignite these fumes. The diesel fumes are too lean and will not ignite. A mixture in the right proportion could create fumes volatile enough to ignite from a spark generated at the filler neck. Second, all injection pumps and injectors utilize the lubrication in diesel fuel to keep internal parts lubricated. Gasoline cuts down on this lubrication and can lead to premature injector and pump wear or even failure. Although accidentally mixing a small percentage of gasoline with a tank of diesel fuel may not result in an immediate problem, it could still result in shorter pump and/or injector life. The only safe action would be to drain the mixture and start from scratch. While this may seem costly, it could save you from more costly repairs in the long run

Don't you think it would advance the timing to far because it will preignite?

I put a gallon of diesel in my truck once (not paying attention) but then dumped ~30 gallons of diesel on top of it so i didn't worry...

so you had 31 gallons of diesel... ...thank god for the edit button huh?
That reminds me though, today we went to get feed. We stopped at an unfamiliar fuel station on the way back. The pump was marked really weird and the diesel handle was black and the gas handle was green (bunch of numbnut employees) but I pulled an old Whitmore trick and sniffed the nozzle to see and went about my marry way.

Give this a read
http://www.turbodieselregister.com/m...and_diesel.htm

Interesting.

Way different kind of hydro carbons

ain't you fancy?

i got bored, and i actually learned something in chemistry

I did too...octane sucks...diesel rocks...

-- I would never mix them.. I'm anal about not putting stuff in my tank that isn't supposed to be there or specifically formulated for such (as in 2 stroke oil or gasoline, etc)

what about kerosene?
some guys still up this way mix a Little kerosene in their diesel in the winter.

My wife just put 18 gal of med grade unleaded in my duramax. Drove a block and died... will it be alright if I drain the tank, change the fuel filter and blow out the lines.. is there anything else I need to do? I was told to put tranny fluid in the new filter and qt of oil in the tank.

why tranny fluid and oil?

Just pump the entire system out if you can do that yourself, or else get a mechanic to do it, then fill the system back up with fresh diesel, should run fine after that. You might need to bleed it though.

LOL I put 20L of gasoline in my truck last week by accident....Pump was covered in snow so I didn't see it said "GASOLINE".... 7/8 pumps were diesel only. So, got it towed right away. They drained and flushed the system out and put 90L of diesel back in the tank.

So I drove it for a week then noticed it was running a little rough. It had been sounding smooth but started to sound rough....so yesterday after work before taking off I bled the fuel filter and it smelled like gasoline....go figure. Well, bled the shit out of the filter, primed the system back up and it instantly sounded way better. Way way smoother... Hopefully nothing bad comes out of that. After they put 90L of fuel in I went and filled up to 180L and put in over 1L of 2 TCW-3....Then after bleeding it yesterday I put in 500mL TCW3 2-stroke and about 72L of diesel....so it should be okay now I hope. What a PITA THAT WAS!