A vehicle we have been running on B100 (2004 Toyota Hilux 3L Diesel 2wd) is now dead.
One day 2 weeks ago we put in $15 worth of normal diesel at the station, there was a small portion of maybe 10% of bio in the tank at the time.
We drove 200m up the road to home, next morning the car failed to start. Upon original ignition a bang then just splutter splutter and smoke.
We presumed fuel filter.
We changed it, and it failed to start.
The fuel that came out of the filter smelled odd, a lot like paint thinners.
We towed it to mechanics (who knows a bit about bio, and has been following our journey)
He suggested something very wrong with our mix, but when I told him I was VERY fussy about following the instructions and the 2 other cars were running like a dream - he was confused.
Then he smelt the fuel and suggested we had put in petrol when he filled up the day before, high octane he said.
We looked at the receipt, nope - Diesel, we went to the station to see if anyone else had complained about bad fuel - nope.
No matter what the mechanic did - it just kept bellowing clouds of grey and black smoke - lots!

A rebuilt fuel pump and all new injectors as well as a heap of other work later we handed over $1800 for repairs.

The mechanic is uncertain about it being bio issues, obviously when 2 other cars are working (80 series cruiser and '94 model Jackaroo) he thinks it may not be, but not sure. But he did suggest the 2004 newer fuel injected engine may not be able to handle the bio... nothing I have heard before, especially in a hilux.
The mechanic noted that the car was in bad condition and in desperate need of a service - belts, oil filters, and many other things needing doing - it was on the mines, and filled with red dirt. Could this be it?

The fuel we took out is in a jar and everyone I let have a sniff says "hmmm paint thinners". Could this be a methanol smell? Why his car only? Where did it come from?

Now, we are very reticent to put any more bio fuel into the car, understandably.

I wonder if you have any thoughts on this issue?