I didn't know if I was the only one who thought of this or not. My dealer sells me 1 gal mix Shindaiwa oil for 42 cents per bottle, as long as I get a case. The Stihl is 83 cents for the 1 gal mix, regardless of how many I buy. 2 seasons ago I got 3 cases of the Shindaiwa. After I got it home I realized it was 40:1 and all my stuff was 50:1. At first I decided to take it back, but opened 2 of the plastic wrappers. I did some quick math and came up with the idea of using 1.25 gals of fuel instead of 1 gal. You still get a 50:1 mix, but a cheaper bottle goes further and saves me a few bucks. It may not matter much if you use 5 bottles a month, but big multi-crew outfits might be able to save a hunk of change. Let me know what you guys think.