[This review was collected as part of a promotion.] items take along time to recieve and not good on letting me know

[This review was collected as part of a promotion.] For a semi synthetic, WM have the best price on a quality oil.

[This review was collected as part of a promotion.] i have been usinf this type of oil already over 5 years and no problem

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

I have used this oil in my 1997 Mack for 15 Years. I never Had any problems with this oil. It does a great job for sure.

The contain is my biggest issue, most gallon jugs are standard sized and fit the opening on the engine, these don't, which causes spillage.

I have been using Mobil oil for over 39 years and the equipment that I put the oil in is still running great.

Im using this product in my conventional truck, I used synthetic oil but this oil the truck runs smoothly, great oil

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.] 330000 miles later it seems to be very good oil.