[This review was collected as part of a promotion.] Mobil Delvac 1300, is an excellent product with a good reputation and excellent pricing.

Great oil for heavy equipment, it's my favorite brand. WalMart has sales periodically, so it makes a great oil a great deal!

i use this in both of my 99 F250s with the 7.3l. four gallons fit like a glove. one engine has over 400,000 miles and still going strong.

[This review was collected as part of a promotion.] Very good oil at a very good price for our fleet.

I use this oil in about 4 diesel engines and have not had any problems. And a lot cheaper then the other oils.

[This review was collected as part of a promotion.] Exelent products I trust to used Walmart 100 for the Oder stores a prices tanks.

[This review was collected as part of a promotion.] You’re not going to find this kind of product cheaper than Walmart.

This is the only oil I will use in my diesel engine. My engine has 390000 miles on it and still going strong with the help of this quality oil

I have used this oil for many years and I have never had problems with my engine internally and it has passed a million miles.

this is not a synthwtic oil nowhere on the container does it claim it is a synthetic oil but is still a good oil