F250 4x4. This truck sat unattended in a field for 19 years. Only 118 thousand kms on the clock. I hauled it to the infirmary and healed it. It actually started with little more than 2 fresh batteries and attention to fuel, but I digress...
No idea what sort of oil is in it but it's absolutely polluted, so it gets a flush change and filter x 2 (500 mile intervals) but here's my question:
My hope is to quickly restore better oil pressure and clean out goop using cheap 5w40 full synthetic (Klondike) then switch to either t6 or Mobil 5w40 after the inevitable discovery and repair of myriad oil leaks. With winter already banging on the door up here on the near-tundra, would I be mistaken to use 15w40 synthetic once the treatments end? Or heaven forbid straight 30, which I am told is available in synthetic? Have any of you guys running the older 7.3 idi's had significant issues using quality 5w40 syn year round? Other than leaks. That's too be expected.
And if I may stray off my own topic, is napa diesel antifreeze actually helpful in preventing potential cavitation? I've heard the napa stuff advised but only from folks who have no idea why.
Many thanks for your consideration.
No idea what sort of oil is in it but it's absolutely polluted, so it gets a flush change and filter x 2 (500 mile intervals) but here's my question:
My hope is to quickly restore better oil pressure and clean out goop using cheap 5w40 full synthetic (Klondike) then switch to either t6 or Mobil 5w40 after the inevitable discovery and repair of myriad oil leaks. With winter already banging on the door up here on the near-tundra, would I be mistaken to use 15w40 synthetic once the treatments end? Or heaven forbid straight 30, which I am told is available in synthetic? Have any of you guys running the older 7.3 idi's had significant issues using quality 5w40 syn year round? Other than leaks. That's too be expected.
And if I may stray off my own topic, is napa diesel antifreeze actually helpful in preventing potential cavitation? I've heard the napa stuff advised but only from folks who have no idea why.
Many thanks for your consideration.