i was fueling up my pickup not to long ago at a sunoco in bowmansville pa when i noticed that the label on the diesel pump said they mix 5% bio in with the diesel fuel is this normal or unheard of?

 

its getting more common all the time, I would love to see it be mandated that a B-5 (5% bio and 95% diesel) be everywhere.

bio has better lubricity than anything out there so a B-5 blend would be fantastic

I have a place here in town where I can get bio so I make my own B-5 blend

 

Petro-Canada is doing it as well up here, at least at all the bulk locations I've been to.

 

B-7 is now sold by law in every standard diesel pump to decrease the fuel consumption in germany.

Beside from that you can get also B100('bout 10 cent cheaper per liter).with the combined disadvantage of higher fuel consumption.

I'm not that happy with B-7. It leads to sludge build up, as the german car industry found out, if you do short distance driving.
According to them it's no harm as long as you change the oil.So depending on your driving habits this leads to more oil changes. Same story as the Ethanol thing...

 

bio is an excellent cleaner so any sludge you get from using it is prolly just from cleaning up the fuel system

 

just sludge in the oil- caused by bypassing the piston rings nd dilluting the oil slowly but steadily.

 

I guess I dont understand that, all piston rings let some fuel slip by adding oil to the sump especially when the motor is first fired up and cold, so the fuel in the sump is a normal thing however its the job of the oil when it warms to operating temps to flash off the fuel in the oil so it doesnt get diluted and thin

so help me here to understand how bio vs regular diesel fuel concentrations are different in the oil sump and why bio would leave sludge

 

The same fact you stated b4, it acts as a cleaner/detergent so it could be removing cabon and sludge build up in the crank case and other oil passages?

 

All pump diesel in the UK is 10% Bio, and that percentage will only increase.

 

nope, it is already stated that more than 10% is harmful to older engines, who is going to pay for the damage?

combustion process runs is a bit more complex in diesels, it runs in several waves.
The argument first engines run on peanut oil does not work anymore on highly developed and fuel specific machines.
I have to pull my papers, its way more complex than to explain by head. Mentioned it a while ago.