So I know it's essentially QuakerState, but I also know that there has to be somesort of a difference. They have this whole lineup; Torque, Horsepower, &c. Does it really work?

 

Its the same base oil as Pennzoil and Pennzoil Platinum with a different additive pack. Pennzoil has a better additive pack but either are great oil especially if you can find QS on sale. I use QS in my dads 2007 ES350 and it works great and very smooth!