10W30 in the X15 ?

[Volvo8873]

They take 10w30 because of the amount of soot that is in the oil after so many miles. When I was a company driver we had 2011 Freightliner day cabs with ISX 2250 in them with 450 HP. They were actually very nice trucks for the most part. Only problem they were leased from Ryder and they insisted on 30,000 oil changes and with the attitude of their fleet managers they were more like 50,000 to 70,000 mile oil changes. I remember anytime we would say the truck needed a P.M. they would jump all over and us and try to give us the backhand for our actions against them. It was kind of sad I should say, glad I am taking care of my own truck these days.