I been selling Opti Oil for almost 30 yrs now. I have never seen a oil failure from using Opti Oil . Our Shop Generators have been using since they was new and some of them are over 20yrs old. We use them in all the Home Standby Generators that we service, I use all there products in all my Equipment and all the Equipment that we repair and sell new. You won’t go wrong by using Opti Oil. Our Sales Rep was call Opti Al ” may he R.I.P ”
