Awhile back I bought a couple jugs of Mobil 1 5w-20 that was on sale for $19 at walmarts. I have used this stuff before and it has always had the MS-6395 on the back of the jug. Just noticed these do not have that spec. From reading I see Mobil 1 dropped the ms-6395 completely. What do you guys think. Use it knowing it isn't spec'ed for my truck or leave it on the shelf? Going in a 09 Dodge hemi, still under factory power train warranty.