Five push mowers and a lawn tractor last weekend. 3.5 HP Briggs Classic, 5 HP Briggs Quantum, 6.5 HP Briggs Quantum, 6.75 Briggs Quantum, Honda GCV 160, and Kohler Courage 20. All received Motomaster (Canadian Tire) Synthetic 10w30, and Kohler got genuine Kohler oil filter. I'm the guy who people give their old "broken" mowers to. I have two of them ready to go to a new home, and will give another one away soon as well. I like to have two good push mowers in case one of them ever breaks. Yes, I use less expensive oil, but change it often. I'd rather have clean inexpensive oil running through these little engines than dirty oil of any kind. I also bought a jug of Motomaster 5w30 synthetic to do four snowblowers, hopefully this weekend. 3 are older Tecumseh 8, 9.5, and 11.5 HP engines, the 4th is a 305 cc Briggs. Again, 2 are mine, the other 2 are for family members. I have been using Supertech synthetic for everything the past few years with excellent results, but with travel restrictions these days haven't been able to get to Walmart.