Excellent oil. Been using for 40 years. At a good price.

good price

Great price!

Is this conventional or synthetic blend? The label differs from the description. Please clarify the description of this product.

The packaging does not indicate that Delvac 1300 is synthetic, however, if you visit the Mobil website this oil is a synthetic blend. Works great in my Duramax

Best Diesel engine old I have found, and I've tried them all over the past 45 years of running Diesel trucks and equipment and rebuilding those diesel engines.

I order MANY of these cases (like 30 of them) when they were on sale, and all of them arrived just fine via FedEx. At the time of the sale, is was cheaper per gallon than buying a 55 gallon drum. Right now, it's about a buck more.

Great stuff. Basically use in everything that doesn’t have a catalytic converter: motorcycles, small engines, tractors, diesel engines, four stroke outboards, etc. Been doing it for years.

can't beat the price from walmart been using mobil delvac 15w-40 in big bucket cat engines for decades 450,000 mi main and rod bearing roll out showed no wear

Been using this in my Cummins last few changes. Seems fine. I like the rebates. Has a solid following from diesel me mechanics. It’s name brand stuff at a good price. Works for me