Originally Posted By: cptbarkey
there are a few engines that would not like it, a hemi with mds, and the chain driven subaru's. probably others but in general 5w30 will be fine in yours.
I can't comment about the Subaru chains however I presently maintain 4 hemi's from 06 to 13. All are equipped with mds. They operate just fine using a 30 grade and 40 grades,conventional hdeo 15w-40 last summer in my brothers. He had a slow coolant leak which led to some deposits. I chose to use it because of the detergent/dispersant package.
To believe otherwise is just not thinking about the wide range of operating conditions trucks are driven. From -40 A 0w-20 is a whack ton thicker than a 0w-40 is at 0 degrees,so why would going thicker matter. Especially in a warm climate.
We've got 4 and 2 I am the only driver and because I spend so much time driving I become intimately familiar with its systems,acceleration,braking and so on. And my 2 are operated in way different manners. I drive the charger bit gets my heart pumping.
My truck is my office on wheels and is more like a multi function appliance that keeps me organized whereas the car I open the sunroof,turn it up and hit the 4 lane prairie highways that lead to empty 2 lane prairie side roads where you call on that 400lbs of torque.
Anyways novel over
Hemis are fine with 30 and 40 grades. All systems operate properly like the MDS and the cam phasers.