Id like to confirm if would be ok to thin gl4 with an atf? ...or thicken atf+4 with gear oil? Ive been reading how the g56 trans in my ram should be overfilled by 1 quart and that the trans when in a ram uses atf+4 but when in most other applications is filled with various other weights of gear oils depending on climate. Most guys on the diesel or ram forums are draining and filling with sychromesh, mobil syth gear oil, or other concoction. id like to add 1 quart of something and if thickening would be beneficial I may aswell add a gear oil. I doubt 1 qt will really make much a difference in viscosity anyway but i want to make sure they will blend ok....
Thanks
Thanks