[2005CRFMAN133]

My local gas station that has 93 none ethanal was closed so I grabbed some 110 race gas 3 gallons and then got 93 with ethanal 2 gallons and mixed. Is this bad to run in a stock engine also my bike is a 2006 completely stock!!!! Thanks for any and all input!!!!

[riddler9]

50/50 would be better. The whole topic is a bit of FUD. Just like automobile mfg's, modern bikes are made to run on 10% ethanol. Ethanol does add to carb maintenance, anything beyond is rare. Just stay away from E85.

Will a bike run better w/o ethanol? Depends on the bike. Is a modern bike designed to run 10% ethanol, yes.

[JimDirt]

To set you at ease , my 450X engine itself is stock with exception of HotCams Stage 1 , and Stainless intakes , my 450R engine is stock with the exception of Stainless Intakes , i run 1 gallon of 130 Octane Leaded Av Gas from the local airport , to 5 Gallons of Premium 91 Octane 10% Ethanol Unleaded

My bikes run fine , actually cooler temps , and performance wise run better , so no worries , i have actually run pure Av Gas with no issues , and i find that it has way less carbon buildup on the piston and valves because of running it either pure or mixed ,and if the bike sits for a time it will still fire up with no carb crud buildup like usually happens with Ethanol crap gas