Summer riding == better fuel economy

[BigTed]

ok folks - the data is in. I've had my ST13 for over 8 years now, just clocking over 144,000 km. I have OCD when it comes to logging my fuel - every litre has been captured since purchase.

Here's a plot of my fuel consumption - I've highlighted an upward trend that spans the near year (ignore the aberration that represents my lap of Oz 2yrs ago).



Here's a bit of an explanation: here

So, what that really means is ... if you want maximum fuel economy - don't ride in Winter! Nope - that's crazy talk.

[CallMeSteve]

Intriguing!   Thanks BigTed.   That's it - from now on I will only ride in January and February     

[ruSTynutz]

Makes sense to me... 

In January/February it's stinking hot...
Stinking hot equals sweating your guts out in full bike gear which equals losing weight.
Less weight equals better fuel economy...SIMPLES!       

[Gadget]

And I would have theorized that the colder air was more dense, and therefore contained more oxygen per gulp.

However, that graph does reflect my own experience on the ST1300.

My other theory is that the colder weather invokes more 'choke' mapping of the EFI, using more fuel.

Now to go read the explanation.

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[Biggles]

That referenced explanation will help no end.  I'll just ride with the aircon turned off and the windows wound down a little.   

[Bodø]

And I would have theorized that the colder air was more dense, and therefore contained more oxygen per gulp.

If the air was more dense would it create greater wind resistence?

[Gadget]

And I would have theorized that the colder air was more dense, and therefore contained more oxygen per gulp.

If the air was more dense would it create greater wind resistence?

Yes.

I just thought more oxygen per intake stroke would provide a better burn and thus more power.

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