DELVAC 1 ESP 5W-40, 3X1 Gallon 127863

I've been using Mobil Delvac 1 for almost 30 years. All my work trucks, and every diesel pickup that I've owned. Every time I've done an oil analysis, it's come back that the oil still had all it's additive package, even when I've ran extended drain intervals. I trust Mobil Delvac 1, that's why I will continue to use it, and I recommend it to anyone looking for a quality oil.

Great pricing and rebate available. Haven't used this pail yet, but it is due soon. Follow up on the rebate - my submission was approved and then rejected two weeks later. A phone call hopefully fixed that, but we'll see...

add a little zddp for a powerstroke and good to go

Really good for easy starts and good lubrication in severe cold weather.

A few fresh gallons for a quick oil change. This old engine could tell the difference.

I always buy this brand as feel it is a top quality product.

One of the best diesel oils made, if not the best for my 2022 6.7 powerstroke.

Very Slow to receive the mfg rebate as compared to shell.

I choose Mobil Delvac 1 because I have found that it is the very best money can buy for my tractor. I have a 48 horsepower TYM T474. I decided to try Mobil Delvac 1 in hopes that it would run quieter, smoother and cooler. Delvac 1 did not disappoint. I'm thoroughly impressed by the results and will use Mobil Delvac 1 from this point forward. I have used Mobil 1 in all of my other vehicles for years and now my tractor is happy too.

First time using Mobil1 products. There were other national brands available for less, but I wanted to try Mobil1,as their products are well reviewed.