I like Shaeffer's for the additive pack. I dont like to pay $22 shipping. So I been using Mobil 1 off the shelf. Got a box of HPL I am ready to try very soon.Yeah I'm using HPL in our daily transportation. I still have Schaeffer's in the Mustang. If I get it out this summer, I plan to change it over to HPL.
I'm still using Royal Purple HPS in the lawn tractor