PineRidge
Super Member
Pete that's what I suspected, thanks for cluing me in on that.
Sta-bil for diesel discontinued
- Thread starter Gary_in_Indiana
- Start date
- Views: 4781
I'm surprised that Sta-bil for diesel ever existed in the first place.
If you analyze what happens when gasoline 'sits' (decomposes), what is happening is that the lighter elements, the very thing that make gasoline usable down to something like -70F, evaporate away, leaving the heavier things like gum and resin behind. Whatever StaBil and its cousins are reduces the volatility of gasoline to reduce this evaporation.
Diesel, on the other hand, doesn't need to 'vaporize' to be usable. It is injected as a fine mist into the cylinder where it is subjected to the heat of 600F+ compressed air and instantly turns to vapor and combusts in the cylinder. No low vaporization temp outside the cylinder, such as a gasoline engine requires, is needed. Consequently, IIRC, the vaporization temp of #2 is something like +140F. Below +140F, no vaporization occurs anyway, so adding something to increase this vaporization temp even higher seems like a pointless expenditure of money, at least on the part of the fuel owner. The additive makers accountants probably disagree.
Long term storage of diesel requires a biocide, nothing more, and even then we are talking years, not weeks or months before adverse effects begin to show up.
If you analyze what happens when gasoline 'sits' (decomposes), what is happening is that the lighter elements, the very thing that make gasoline usable down to something like -70F, evaporate away, leaving the heavier things like gum and resin behind. Whatever StaBil and its cousins are reduces the volatility of gasoline to reduce this evaporation.
Diesel, on the other hand, doesn't need to 'vaporize' to be usable. It is injected as a fine mist into the cylinder where it is subjected to the heat of 600F+ compressed air and instantly turns to vapor and combusts in the cylinder. No low vaporization temp outside the cylinder, such as a gasoline engine requires, is needed. Consequently, IIRC, the vaporization temp of #2 is something like +140F. Below +140F, no vaporization occurs anyway, so adding something to increase this vaporization temp even higher seems like a pointless expenditure of money, at least on the part of the fuel owner. The additive makers accountants probably disagree.
Long term storage of diesel requires a biocide, nothing more, and even then we are talking years, not weeks or months before adverse effects begin to show up.