is the chevron delo 15-40 good oil to use in the dmax. i see lots of big diesels using it.

Yes.

Good stuff for sure.

thanks:) am gonna get a fumoto though. what a pita!!!! oil all over the skid plate:mad:

I've been using it since my first oil change. I had an oil analysis done at 20K and all's well. I get a 6gal case from Costco for around $37.00.