Guys, the 800's run just fine on regular. If you want to go out and play Joe ice racer or mogul masher and get 100% from your sled, add premium, and flip the switch. Running premium full time does nothing but make the gas companies richer. Your call, run what you like.
On the deto. thing, consider that this is much more likely to happen at mid range speeds (5600-5900 rpm) in warmer ( like 30-35F) temps. From what I have experienced when this is happening, there appears to be no difference which fuel you are running. It's happened to me on both.
Also consider this. When gasing up at out of the way filling stations, you run a higher risk of getting bad fuel when purchasing premium - due to the fact that it has most likely been sitting in the tank much longer due to the difference in selling price, and the fact that cars/trucks/whatever are buying regular much more frequently.
AND regular fuel runs cooler.....
I suspect the 91 min. octane advertising from the manufacturers is wishfull thinking to minimize failures under warranty. Kinda like saying the only injection oil they'll warranty is their own.....which doesn't hold much water either.
'07 Apex RTX w/Pro X suspension conversion, Fox Floats w/resi's, Doo extro drivers, Cobra track, Dual Ryde FX rear clickers, .375 Edge torsion springs, HyGear Dual rate front skid springs, SLP anti-stab kit, Powermadd handguards/mirrors, 2" Rox riser, shimmed Poo skis w/custom (homemade) ski savers, Black chrome W/S, Graphics by Arctic FX, and a grin every time I think about it! New Project: 600HO Fusion bump sled, Air 2.0 w/hi/low valves, HRM spindles, Retro graphics, .359 torsion springs.