Bio 20 fuel
Just had a trip to Texas and back to Az. Had to use bio 20 2 times and really don't think our 05 duramax was made for bio fuel. Anybody feel it was a bad thing? Also I feel for the fifths that do n...
Forum Discussion
Turtle n Peeps wrote:
It's ok as long as you don't make a habit out of it. Design limits are there for a reason and your truck was not designed for B20.
You will lose mileage and performance out of B20 and you will loose a whole bunch more with B100. I've seen what B100 can do to injectors over a long period of time and it's not good.
B20 has a BTU/gallon very close to #2 diesel, unlike ethanol fuel and it usually has a higher cetane rating. my 2015 is rated for b20 and my experiece is it has NO effect on mileage. In fact the best mileage I got so far with my 2015 duramax is 24.5mpg running B20, and that was for a 750 mile trip over the continental divide and two other mtn passes. And, yes that was had calculated. I still had 5 gallons in th tank when I filled up.
But yes, the 2004 is only rated for B5, although I have run B20 in it on occasion with no ill effects.
