I own a 2004 Toyota Tundra double cab.It has been a great vehicle, but let me tell you.Lucas Oil just made it better. I had an annoying wine comung from my rear end for the past year and a half. No one including the dealer could diagnose the problem. The tires also wore down from the limited slip not working correctly. Picked up a few qts. of Lucas gear oil and my troubles are gone. I could'nt believe it. I'm a Lucas Oil fan now.Thank you for a great product that REALLY works. Sincerely, Jamie Marcotte, Raleigh N.C.