Just traded in our 2017 F3 limited for the 21 RT Limited. I'm not a dummy but the book says to use fuel with different ratings that I'm not familiar with. Why they can't just say what octane to use is beyond me. The F3 took 93. What does the RT take as a minimum?
The Operator’s Guide which came with my 2021 RT Ltd, page 47 states:
“Recommended Fuel: Use premium unleaded gasoline with an AKI (RON+MON)/2 octane rating of 91, or an RON octane rating of 95.
NOTICE Never experiment with other fuels. Engine or fuel system damages may occur with the use of an inadequate fuel.
NOTICE Do NOT use fuel from fuel pumps labeled E85.
Use of fuel labeled E15 is prohibited by U.S. EPA Regulations.”
Being a person who has limited knowledge of things like this I find it always prudent that I try to comply with procedural advice. I run the highest octane I can find around here which is 92-93.
BRP
DOES actually say what Octane rated fuel they recommend, see Pooch's Quote above.

hyea: . The United States uses and has standardised upon the
'AKI' Octane rating system (as per Pooch's post, see the
bold bit in it.

)
So jephillips44, if you live, ride, & fill up with gas in the United States, the Octane rating you'll see on the pumps etc
AND BRP's
recommended Octane rating as stated in the manual for Spyders as the fuel you should put into your Spyder is simply
91, when using the
AKI Octane rating method anyway, which is pretty much all you'll ever see over there. :lecturef_smilie: .
However, as others have mentioned earlier, you really don't get too much in the way of 'lesser quality' or 'dirty' gas over there, and unless you
already have an ECU Upgrade; unless you're chasing the last poofteenth of track performance; &/or unless you're riding at high altitude
a lot (think Pike's Peak sorta high...

) then the ECU/computer is really going to look after you pretty well 99.8% of the time, and that last 0.02% of the time you'd still be looked after OK, in fact, so well that most would be really going some to detect the difference between the different fuels anyway!!
So, again as others have already suggested, use whatever gas you prefer; it doesn't really make a massive difference if you run 87, 91, 93, or something else.... & all those are AKI Octane

Only still & also like most, I too would suggest that you use
ethanol free gas at all times, unless it's
absofreakinlutely unavoidable! :shocked: And even in those circumstances where you just
can't avoid using
some gas with ethanol in it, do try your damndest to use the minimum amount of ethanol tainted fuel necessary.... :shocked: even if that means draining & giving away a half a tank of the gas with added ethanol - that is,
IF you
can actually GIVE the bleedin stuff away! :yikes:
But for whatever it's worth, & this's just
my preference.... here in Oz, where my Spyder has already had an ECU Upgrade done, I generally use
95 RON on the road, while for track work I use
98 RON or
specialist non-ethanol RaceFuel (it's getting harder to find any RaceFuel that's NOT E85! :banghead: ) - oh, & please do just remember that here in Oz we use
RON not
AKI to for our Octane ratings. Simples, really....
