Vespotted injection nozzles at D4D ?

Question to all D4D drivers: Ever heard of problems with clogged injection nozzles ? My Avensis Verso (88,000 km) had, shortly after I had fuelled on a cheap tank for 20 EUR diesel, suddenly power loss: a few km later only felt 20 HP was available and the maintenance control lamp stood up. Immediately to the TOYOTA dealer, who read the error code: constipation in the caft material filter up to injection pump area (so in the kind). r 8.000 km a new filter catch built! So again a new pure and the tank with brand sprite full, one should trust the judgement of the master that the fuel was probably contaminated … And look, after another 5 km driving distance in Schleicher-operation came by itself life again into the turbo and stops so far (+450 km). My friendly hint to the gas station operator, that there might be something wrong with the diesel, he of course denied. More still- he reported that there is a known problem with clogged injection nozzles at Toyota. But I have never heard of it or read it ! Greetings aVANsis