Legally speaking the variation of energy content in standard gasoline is limited to 3% deviation from an established standard.
Reformulated and oxygenated blends have a separate standard, but the same allowable variation. Side note: Ethanol blends use the standard of the fuel they are emulating: RUG, mid-grade oxygenated, etc. So unless you/your supplier switched from a low energy fuel, like a reformulated low emissions blend, to standard fuel you wouldn't see a jump like that purely from a fuel change. Most likely is that "calmer" mode you've mentioned. Calm, smooth motoring always improves fuel economy. Kurt On Sep 10, 2015 12:41 PM, "Javier Garcia" <[email protected]> wrote: > In my experience roughly 10mpg of difference between highway and traffic > lights is reasonable. What I found amazing is that at 80k miles you are > still getting such a great performance. Maybe the gas you are using has a > different composition from the one you use to get a while ago? > > On Thu, Sep 10, 2015 at 1:30 PM, 'Hawaii Sean' via Nighthawk Motorcycle > Lovers! <[email protected]> wrote: > >> I just recently reach 80,000 on my 96. I bought it with 16,000 and from >> then until January of this year I got around 43 miles to the gallon. Now >> I'm getting between 50 and 55. I don't think I've changed my driving >> habits and my commute is basically the same as it has been for the past 7 >> years - I switched jobs 4 months ago and drive about 2 miles farther each >> way. It does change my commute in that I'm on the highway for the last 4 >> miles so I'm driving 4 miles less each day in stop lights. My new commute >> it a total of 12 miles each way. I'm typically very conservative and >> defensive when I'm on the highway but not a huge difference. >> >> To make it even more confusing. In the past when I would drive a long >> trip out of commute hours ( in Honolulu that's 110 if you go around the >> island) my gas millage was at best just over 50mpg. >> >> So the question is could changing 4 miles of stop lights (not stop and >> go) and calmer driving for the whole trip of 20 miles make that much of a >> difference on gas millage. As these bikes get older does the gas millage >> get better? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Nighthawk Motorcycle Lovers!" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/nighthawk_lovers. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/nighthawk_lovers. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/nighthawk_lovers. For more options, visit https://groups.google.com/d/optout.
