I got a kick out of it when I would change oil the first couple of times in my wife's 1998 Isuzu Rodeo. She would come into the garage right after I changed oil and ask what I did to it. I would ask her, "What do you mean, I only changed the oil." Her response, "It's quiter, it doesn't have that tick." LOL
I've been a long time user of Amsoil in my dirt bikes.
Got a 2003 Tahoe 143,000 on it when I bought. It would go thru a quart of oil in 3,000 miles (SuperTech). I switched it to Amsoil 5W/30 Signature Series and to this day with 250,000 miles on it doing one year oil oil changes (12,000 ish miles) I might add a quart one time.AMSOIL products are so good!
Travis F