While the GS/RS/RSS/ST Models
might get better fuel economy (cos they're lighter!

) that 30 mpg is probably not
too far off the 'best to be expected' mark for an aging 2011 RT that hasn't had any 'weight reduction' mods done (like a cat delete

) plus an ECU Upgrade with air intake & exhaust mods to suit/enhance the engine's ability to take advantage of the better tune....
But if you do those things mentioned,
and you can resist the temptation to always wring the throttle right round to WOT at every take-off, you could probably get a whole lot better than 30 mpg!

hyea: . Maybe
not quite reliably getting the 42 mpg that some report getting with their 1330's, and no matter what you do to the tune & in the air intake/exhaust/weight loss departments, you're unlikely to ever get the same range as the 2014 & on 1330's simply because they have a 26 litre(usable 24 litres)/6 gallon or so tank, while your 2011 has a 22 litre(usable 20 litres)/5 gallon tank!! That said, my 2013 RT Ltd that
does have all those mods & has been on a weight reduction programme, and it generally gets pretty close to 35 mpg most of the time(cos I
can't always resist the temptation to wring the throttle!

) and occasionally, on a steady speed/long run where I'm not working the twisties & I don't spend too much time over 8,000 rpm &/or 70-75 mph, I can get pdc to 38-40 mpg! :thumbup:
Still, it's the nature of the beast - the V-Twins are high revving power plants that thrive on those revs to deliver top end power rather than putting out heaps of torque at relatively low revs in order to lump along & poke around the place; and
any Spyder is a pretty large lump of real estate that hasta push a dirty great wall of air ahead of it; so as a result, the V-Twins are much more exciting to ride to their limits, but not as economical as the lazier engined, higher torque, lower revving 1330 motors can be - but if you (try to

) ride one of them like I usually ride my 2013 & you keep it in the top third of it's rev range
ALL the time, they too will certainly wake up (a bit :roflblack: ) but then they won't get as good as 40 mpg either! :shocked: And once you get
either of them up over about 75 mph, or if you're pushing your Spyder hard into a gusty or head on wind, you'll pay the penalty in terms of fuel economy too! :lecturef_smilie:
So if you want better fuel economy, why don't you get that ECU Upgrade, improve the air flow
IN & the exhaust flow
OUT of the engine, maybe fit a shorty windscreen to lessen the wall of air you hafta push ahead of you, and put your Spyder on a weight reduction programme starting with the catalytic converter (if you haven't already!)?? :dontknow: Do that, then all you'll hafta worry about is resisting the temptation to wring the throttle hard & enjoy all the new found power & those wonderful revs - which could be something a whole lot harder to do than you might think! :thumbup:
Go On... DO IT! You Know You Want To! 
hyea: