RE: DLE 55 oil slection?
so far i have switched all my gassers from penx air cooled 40:1 to stihl ultra 40:1 used from a dle20 on up, because it is so convenient to add the 6.4 oz bottle of oil to 2 gallons of gas and get 40:1
however i did install new bearings and a Frank Bowman ring on my oldest gas motor a DL50... i followed his advice, so im gonna burn a gallon of mineral oil30:1(Lawn Girl, its all i had in the shop...) then switch back to my everyday mix of 40:1