I know enough to be dangerous...cars, houses, women, oil, you name it. I know blending your own is somewhat verboten aqui.... I have been considering mixing full syn Amsoil 15W-40, 50/50 with a premium dino 15W-40. Perhaps Delo. To save money, to say I did it and just to be myself, if in a creative way. My car is old....it is surviving OK, I just am entering period where every cent counts. I need candidates for the dino oil. For some reason I have the urge to get moly in the mix. Maybe one of the Schaefer's numbered products....I know Delo doesn't have moly. Do any of the other 15W-40's? Wisecrax? Comments? Aspersions?