I would use SuperTech non-synthetic 75W140 unless Amalie has something for it.
I would not use a synthetic in either unit unless I knew all of the seals had been upgraded with modern seals.
Edited by MolaKule (07/04/14 03:00 PM)
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." Thomas Paine