Mixing Bio fuel w/ reg diesel

as long as it is certified for B20, no issue. I do it quite often.

Several years ago, our adminerstation mandated all fuels include renewable fuel sources. Like stated above, if it is under a certain percent, it does not have to be labeled. You most likely have been running Bio and not aware of it. Bio is actually a good fuel, better lubrication properties, almost as high energy content, and better emissions.

Thanks for the replies gang. Never had bio before and tho the truck can use it, just wasn't sure about adding/mixing it with reg fuel oil.

FYI...up to 5% bio no label required on the pump, above 5% Bio the pump must have a label stating that it is Bio fuel.

My 2012 F350 6.7 has a decal on the lower front corner of the front doors stating 6.7 Power Stroke / Turbo Diesel B20, meaning up to 20% biodiesel is ok. I think all local stations sell 5%.

In the warmer weather bio is no problem for most engiines in the 5-20 % blends. Carry a spare fuel though because bio tends to take out some sludge in your fuel system.

Shouldn't be a problem. I think all diesel sold here in Washington is 5% biodiesel.

Your 2015 should be rated to 20%bio blend. Owners manual diesel supplement to be sure

On a recent trip we couldn't find anything but the bio-diesel mix in some parts of Iowa and Minnesota. I looked in my owners manual and I think it said the engine could handle up to a 20% mixture. I may have to look again, but, anyway it didn't seem to affect the engine performance. As we went west we got back into regular diesel.

If your vehicle is ok with bio-D, then no issue mixing the two. Bio-D is usually a blend anyway, usually in the 10% or 20% range of bio-D mixed with traditional diesel.