I'm beginning to understand that the problem for us diesel users starts with not knowing what kind of diesel we are getting in the first place. I'm not sure that the diesel stations and vendors know either. It wasn't always like that around here. It used to be that the vendors would label their pumps. Nowadays labeling isn't so common. Yesterday I took the time to look around a few stations. It seemed to me that the best bet would be one of the independent small refinery/stations which we have a few of locally, so I stopped by one that I used to buy from. In years past, that station used to have pumps labeled as either #1 diesel or #2 diesel. Some also had a kerosene pump labeled 1-K.
What I found was no different than the name brand stations. The independent producer stations no longer label #1 or #2. They sell a lot of Diesel, but all their pumps are all simply labeled "Diesel Fuel"..... Which leaves me wondering just what is the mix they are selling in those pumps and what temperature is is good for? And is it treated in any way? With what? After some conversation, I've no idea and doubt if there is much of any way to find out. The people selling it don't have a clue. BTW, that particular station still sells 1-K kerosene. Kerosene is obviously different from diesel, though - and costs almost twice as much. They keep that pump and tank under a double roof .... for keeping water out?
The weather forcast says it's going to get cold this weekend. My curiosity got the best of me and I took some last summer fuel I had and made up a couple of fuel samples in clean ball jars. With luck we can see if untreated summer fuel clouds with wax - or not - and also if the sample with the JD winterizer has any effect.
Good luck beats good planning,
rScotty