If someone wanted make the oil more viscous without having to do an OC. But they are better off using a thicker grade to begin with.
It does help keep oil pressure up which I thought was always a good thing though.
Probably because the oil is thicker.
yeah, I knew that. I just have ALWAYS added Lucas to the 5qts of oil I use in my cherokee. There was one time that was in the past year that I decided to run Rotella T5 without the lucas, but my jeep just didn't feel like it had the pick up and go when I accelerated. So I switched back to the Valvoline maxlife 10w30 (or 40) along with the Lucas.
I just went with what works. It does and I am fine with it. But what troubles me now is the fact that I read on a link I mentioned earlier that says an additive like Lucas Oil Stabilizer would hinder gas mileage? Is that an entirely true statement?