I have the Toro 22" AWD Recycler with the B&S EXi 7.25. They recommend 5w30 FS or 10w30 conventional. I really like the QS 5w30 syn blend on paper but I wasn't sure if the Syn Blend 5w30 would provide enough Anti Wear Protection or what ever they want you to use 10w30 conventional over 5w30 FS?