Hello. Currently running 0w-40 Rotella T6 in my 2014 F350 6.7 Power Stroke. My plan was to continue running this oil year round or the Delvac 0w-40. 10w-30 is recommended for my truck. I now see that Chevron has the Delo 400 LE 400 5w-30 that sounds really good. I am really thinking of trying...
