New member here, and I am curious about something... I've been stalking this forum for quite some time and I've seen where people say, "for warranty" you should use this kind of oil. Has anyone had their warranty voided or heard of a warranty being voided because of an oil issue? I work for a Chevy dealership and have never seen or heard of a warranty being voided because the customer was using the wrong kind of oil. I've personally had to void a warranty because the customer went 30k on his factory fill and wondered why his engine was making noises lol. I wish I could find the pics of the internals on that 3.9L.
P.S- We only carry 3 different oils for oil changes, Valvoline bulk 5w30, Premium Blue 15w40 syn blend, and Mobil 1 5w30 and we do lots of conventional oil changes.
P.S- We only carry 3 different oils for oil changes, Valvoline bulk 5w30, Premium Blue 15w40 syn blend, and Mobil 1 5w30 and we do lots of conventional oil changes.