I own a mobile diesel repair shop and this is buy far the best oil for the money i cant touch oil of this quality for cheaper then this

Non synthetic oil is getting harder to find as newer diesel engines require synthetic oil. As an older diesel truck owner, a synthetic blend oil is the next best thing.

[This review was collected as part of a promotion.] I love the fact that I don't have to go to the store to pick this item up. It was already packaged as 4 per box, and it was also on sale. It makes my life much easier.

I have used Delvac exclusively in my DD15 for its entire life. 888,000 miles and counting. With NO rebuild! Changed at 25k give or take with 1 gallon of Lucas also included. Never had a bad oil sample report.

Hard to find item at a reasonable price but Wal*Mart had it.

Very good oil. Have been using for quite some time with good results.

Great value

I've used Mobil Delvac 1300 since 1999.. I have had 3 big trucks with 500+ HP Detroit Engines and put over 1 million miles on them, with absolutly No Oil Fatigue Problems.. I use Mobil Delvac in every car , pickup , garden tractors and lawnmowers that i own today ! !

20k oil change intervals. works great.

Great price on bulk oil for my Chevy diesel truck. It's always fun to shop At my local Sam's Club.