Its simply and fairly logical. Next time you are in your car or something else beside your truck that you can put the pump on full blast, do it , and then crouch down and if you catch the light just right or you may not even have to you can see all the splashing the diesel is making as it comes out the nozzle. It usually ends up draining down the side of your paint job. I can walk by almost any truck and see the trails of it down the side of the truck from the pump door down. This is waste that cost us almost four dollars a gallon. Secondly with the diesel coming out that fast it mixes more into the air(more so with gas), and that diesel in the air floats into the atmosphere or right back into the tank at the gas station. Here is the post that explains it all.

Tricks to get your money's worth
> >
> > TIPS ON PUMPING GAS--GOOD INFO . I don't know what you guys are paying
> > for gasoline.Here in California we are also paying higher, up to $3.50
> > per gallon. But my line of work is in petroleum for about 31 years
> > now, so here are some tricks to get more of your money's worth for
> > every gallon.
> >
> > Here at the Kinder Morgan Pipeline where I work in San Jose, CA we
> > deliver about 4 million gallons in a 24-hour period thru the pipeline.
> > One day is diesel the next day is jet fuel, and gasoline, regular and
> > premium grades.
> > We have 34-storage tanks here with a total capacity of 16,800,000
> > gallons.
> >
> > Only buy or fill up your car or truck in the early morning when the
> > ground temperature is still cold. Remember that all service stations
> > have their storage tanks buried below ground. The colder the ground
> > the more dense the gasoline, when it gets warmer gasoline expands, so
> > buying in the afternoon or in the evening....your gallon is not
> > exactly a gallon. In the petroleum business, the specific gravity and
> > the temperature of the gasoline, diesel and jet fuel, ethanol and
> > other petroleum products plays an important role.
> > A 1-degree rise in temperature is a big deal for this business. But
> > the service stations do not have temperature compensation at the
> > pumps.
> >
> > When you're filling up do not squeeze the trigger of the nozzle to a
> > fast mode . If you look you will see that the trigger has three (3)
> > stages:
> > low,
> > middle, and high. In slow mode you should be pumping on low speed,
> > thereby minimizing the vapors that are created while you are pumping.
> > All hoses at the pump have a vapor return. If you are pumping on the
> > fast rate, some of the liquid that goes to your tank becomes vapor.
> > Those vapors are being sucked up and back into the underground storage
> > tank so you're getting less worth for your money.
> >
> > One of the most important tips is to fill up when your gas tank is
> > HALF FULL or HALF EMPTY. The reason for this is, the more gas you have
> > in your tank the less air occupying its empty space. Gasoline
> > evaporates faster than you can imagine. Ga soline storage tanks have
> > an internal floating roof.
> > This
> > roof serves as zero clearance b etween the gas and the atmosphere, so
> > it minimizes the evaporation. Unlike service stations, here where I
> > work, every truck that we load is temperature compensated so that
> > every gallon is actually the exact amount.
> >
> > Another reminder, if there is a gasoline truck pumping into the
> > storage tanks when you stop to buy gas, DO NOT fill up--most likely
> > the gasoline is being stirred up as the gas is being delivered, and
> > you might pick up some of the dirt that normally settles on the
> > bottom.
> >
> > Hope this will help you get the most value for your money.
> >
> > DO SHARE THESE TIPS WITH OTHERS...

 

Casey, good stuff. Reps sent

 

Thanks I actually only learned this a few weeks ago, but its good to know that all those extra minutes I spent waiting on the pump wasn't for nothing.

 

I also tried to reps but I COULDNT !!! you know the sad history.

 

Thanks Plo. Ill be waiting.