Meet emission requirements while boosting your fuel efficiency and reducing operating costs with Chevron Delo 400LE 15W-40 heavy duty motor oil. It meets the requirements of post-2007 low emission engines, but it's also backward compatible to work with older conventional engines. This blend is especially effective in engines that use ultra-low sulfur diesel fuel, though it also works quite well with normal and low sulfur diesel.
Changes took effect Jan. 1, 2017. Learn more here!