My coworker is an engineer that use to test 2T oils at their San Antonio facility on new chainsaw engines. He blended oils for Stihl and husqvarna. Each had same stock oil but different additive packages. One company required 32:1 the other 40:1 for their products. They MEASURED actual wear and other criteria. He said once you move up to racing oils you’ll have better stock oil and additive packages. So I agree with Andy’s point AND Eggshooter. I believe Eggshooter’s results but Andy is probably thinking like me each 2T oil, racing or not, has a lab proven viscosity for protection and it’s application. Racing oil, higher viscosities, WILL provide more protection. Racing teams use RACING OIL for a reason...more protection and viscosity needed for its application. ANY 2T oil at 40:1 or less, I’m certain you’ll never have an oil- related engine issue. There’s no “best” oil for multiple applications.