If you enjoy the articles in this web site, please consider supporting it by ordering the items you want by clicking on the recommended Amazon product links in the articles, which will just add those products to your Amazon shopping cart.

The product links contain a referral tag that allows me to earn a small commission on the sale of the products from Amazon.  This doesn't cost you anything extra but will help to offset the cost of running this web site and writing new articles.

Article Index

15W-40 is the basic HDEO / Diesel Engine Oil multi-grade and every heavy duty engine oil manufacturer makes this viscosity. 0W-40, 5W-40, and 10W-40 grades are less common so this page is a partial list of these grades available in North America.

0W-40 HDEO

5W-40 HDEO

10W-40 HDEO