When towing with my ram diesel how do I tell when I should downshift. it seems to tow so easy, but slows when going uphill at 60 what should my rpm show.
Wow So complicated Very unscientific as compared: Home is at the base of the Grapevine Learn by watching water temp if only factory guages Steep hill temps will climb fast with rpms in the lower 2k's... so downshift and spin it mid to upper 2k's... Life is good YRMV