ATV Repair and Maintenance Rotella oil August 24, 2015 I bought Shell Rotella oil (T6) 5w-40 for my first oil change. I notice on the bottle it says for diesel engines. Is this a good oil for atv’s or should I get another brand. This is the only oil that walley world had in that weight. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related