The best octane to put into an 08 Sportster 883L is 91 or higher, according to its manual. This will result to an average 50 mpg.
91 octane
91 octane or better. Its on a sticker on fuel filler door.
it is recommended that you put the best gas in the tank the octane # (i think that's its called)has to be above 91 or 92
" regular " unleaded , 87 octane
put the 92 octane for keep your engine clean and for the turbo engine 1.4 not 1.8 the 92 is the best performance at 4000 rpm high
Yes you can. It will always be cheaper to just buy the 91 octane though so you'd be wasting your money.
" regular " unleaded - 87 octane
Yes.
87 octane regular. The use of any higher octane will provide no benefit whatsoever and is a total waste of money.
put more in or get a new car
no
Absolutely nothing.