Got a station in Bowman, ND that sells B20. Not much cheaper than diesel though. :ouch:

Found the reason.

Bio gets into the oil like normal fuel via the piston rings- which is normal.

The difference is the point of evaporization. Diesel evaporates t 55°C or 131°F.
Bio is different at 266°F or 130°C tht means oil get thinner over time. Leading to improper lubing of the internal engine parts. This is no problem as long as you avoid, as already mentioned, short distance driving and all sealing parts are intact.

Gambling? In my opinion it is playing against a stacked deck. Sooner or later you are going to lose.

Sorry for the delay- had to seek for it on thr puter.

so bio in the oil wont flash off till 266*f

damn I didnt know this:ouch:

So? Whats the average oil temperature? Bio will not diseappear out of the engine oil.

If it is mixed with diesel it will burn like diesel- but it still comes into the engine circuitry.
Even diesel acts in its burning behaviour like an onion with different layers of different flash points. But this is chemistry stuff and I can only repeat what the chemistry gurus explain.

Seeking for an better explanation- interesting that is a neglected fact on most english language sites.