Originally Posted By: BrocLuno
Since regular "dino" HDEO's can go up to 15,000 miles in big rigs, what are trying to do?
Note that Delo 400 15W-40 is Iso-Syn technology, so that is technically able to be called syn in the USA...
We just changed two days ago to the Delo 400 15W-40 in the son's gas 5.9L 2002 Dodge Ram 1500 that will need a quart to make it to 5K miles with 10W-30 factory spec. It was on sale for $12.99 a gallon so we picked up a case. Not sure if we will use it this winter but we seldom see temps < 20F. The miles are at 131K.
