The period of clogging had nothing to do with going back to diesel. I was thinking it might be that the small amt. of gasoline dissolved crud off the tank from it's previous life on diesel.

The few times i used diesel, or kerosene, if i had to drive it in very cold weather, there was NOT a clogging problem.

Wondering if the lack of "chicken skin" has to do with not heating the WVO.

I have started using a small magnetic heater stuck to the back of the tank in marginally cold weather. Hoping this will not cause a "chicken skin" problem to develop.

Also wondering about stuck rings mentioned as a possible downside to WVO use. How can you tell if you have stuck rings. I read somewhere that soaking them in Marvel Mystery Oil could alleviate that problem. Do you just take out the injectors and pour the medicine in each cylinder?

These forum have been a goddess send to marginally competent folks li,e myself.