... proven fact MARINE fuel= summer fuel- different flash point fuel in tanks not changed as much as in summer. this means u may be purchasing summer fuel for your sled...
Proven by whom? As I stated earlier I was involved in a law suit, where this very thing was the deciding point, and the refinery that produced the fuel said off hiway, and on hiway are 100% equivalent, the dye used has no effect on the performance of the fuel, and they are stored in the same tank before the dye is put in.
The turnover of any tank is just a matter of its customer base. There are lots of people who use off hiway fuel all year round for various apps. Seeings that you have intimate details on this I can only assume you are from the PG area. So you of all people should realize that forestry consumes lots of off hiway fuel all year round. Which would lead to high turnover of the holding tanks.
As far as flash points are concerned, you appear to be confusing diesel and gasoline. The only real change in summer to winter gasoline is the RVP rating which in short is the vapor pressure of gasoline at 100F, summer gasoline is made so it evaporates slower so it doesn't just boil away in the summer. The only real reason that they produce summer gasoline is so that it doesn't evaporate away. It is far cheaper to produce winter gasoline then summer as it uses more butane per volume, and butane is cheap, but the knock rating is still 91, summer or winter. This is the rate at which it burns, the higher the number the slower the burn the greater it resists detonation.
I have no dog in this fight, but I do want to keep facts, facts.