That must be why there in none on the shelves,,drat. Using Magnetec 5W-20 full syn my daughter did a 9400 mile oil change interval on her 2010 Ford Focus with the level barely moving on the dipstick. This oil change I used Valvoline Syn with Maxlife Technology in again 5W20 .The last 3 changes on my Ford F150 have been with Magnetech semi and full syn 5w-30.It is probably as good as any other oil. I like it because it is blended onthe higher side of its viscosity.