My 2010 Grand Cherokee with the Hemi engine recommends 5W-20 due to the MDS system.
I have been using Amsoil 5W-20XL and wix filters.
I do quite a bit of towing and when using the tow/haul mode it disables the MDS system.
Since the MDS system is not being used when towing and towing works the motor harder would I be better off/safer going to 30W or am I safe towing with a 20W oil?
I would like to keep this vehicle for years so I would hate to think I am harming the motor towing with 20W.
Thanks
I have been using Amsoil 5W-20XL and wix filters.
I do quite a bit of towing and when using the tow/haul mode it disables the MDS system.
Since the MDS system is not being used when towing and towing works the motor harder would I be better off/safer going to 30W or am I safe towing with a 20W oil?
I would like to keep this vehicle for years so I would hate to think I am harming the motor towing with 20W.
Thanks