almcc wrote:
Wm.Elliot wrote:
Mexicowanderer wrote: "Mexican road diesel of yesteryear (which is diesel marina now) gave better fuel mileage."
That's the truth! The improvement in mileage was very impressive! I'm not sure why the older diesel was so much better - maybe more paraffin?
That was our experience as well. If you look up the heating value of ULSD vs the high sulfur diesel the heating value of the high sulfur diesel is higher.
I noticed better fuel economy with Mexican diesel long before LSD or ULSD was used in the United States.