2011 Arctic Cat 366SE ATV Service Manual, Page 4Get this manual
During the break-in period, maximum of 12 throttle is recommended; however, brief full-throttle accelerations and variations in driving speeds contribute to good engine break-inAfter the completion of the break-in period, the engine oil and oil filter should be changedOther maintenance after break-in should include checking of all prescribed adjustments and tightening of all fasteners RECOMMENDED FRONT DIFFERENTIALREAR DRIVE LUBRICANT
The recommended lubricant is Arctic Cat Gear Lube or an equivalent gear lube which is SAE approved 80W-90 hypoidThis lubricant meets all of the lubrication requirements of the Arctic Cat ATV front differentials and rear drives
GasolineOilLubricant
RECOMMENDED GASOLINE
The recommended gasoline to use is 87 minimum octane regular unleadedIn many areas, oxygenates (either ethanol or MTBE) are added to the gasolineOxygenated gasolines containing up to 10 ethanol, methane, or MTBE are acceptable gasolinesWhen using ethanol blended gasoline, it is not necessary to add gasoline antifreeze since ethanol will prevent the accumulation of moisture in the fuel system