I used the Ford motor as an example... not saying you should be using 0w20 or something. I'm not sure what your truck specs... 5w30? I'd stick with that, no lucas. If oil wasn't "stable" on its own, I believe companies like Mobile would have resolved that "issue" decades ago. I've only seen Lucas be of use in motors with blown rings. Even Blackstone Laboratories, one of the go to motor oil analysis labs, recommends not using it.

88 Montero, StarQuest turbo, Kormex 5speed +tuff-pan w/phoenix f. stage2 clutch, 4in lift+33' tires, 4.875 lsd, short-throw shifter, Aisin hubs, SR big brakes, gen2 uca's, elantra alt, and so much more... 16g turbo w/hardpipes + 4.90 locking disk-brake axle soon (maybe lsd or aussie front??)