I fear I am opening a can of worms here but I really would like to know more. I recently switched to synthetic 2 cycle oil because I am a big believer in synthetic oil versus conventional oil being better and giving longer engine life. My big question is does brand really matter. I am using a “store” brand generic synthetic oil. I love Lucas oil products but it is literally twice the price. Does it really matter? When royal purple, Lucas oil, Sthil, husqvarna, and the like cost 50 to 100% more can you justify that quantitatively? What do they have that the generic synthetic 2 cycle oils don’t have? I am not trolling or looking for a fight. Can you really justify the extra cost? And if so what do you base your conclusion on?