So after work Saturday night I took it over to the quick lube place and we changed the oils. When I drained a quart of the oil it got less than 5 miles earlier at the shop it looked OK on the dipstick but came out black from pan so I dumped everything. My quick lube neighbor buddy suggested 20W-40 along with Rislone. While we were at it, we drained the coolant, transmission oil and differential. The oil was disgusting, like molasses. In all my years of monkeying around with vehicle nothing makes me want to puke as bad as the smell of burned transmission oil. While I was in the pit, the only problem I saw was a leaky but not gashed upper ball joint on the passenger side.
With the new thermostat, the engine came right up to temperature and the truck drove and shifted so much smoother with fresh oil front to back.
This Rislone stuff is amazing! I took it for a long drive that night to knock the cobwebs off and get its juices flowing again. Within 10 miles the truck went from sound like a time bomb to quiet as can be. I'm totally sold on Rislone. Great product. There's still some ticking when it's cold but it quiets down after it comes up to temperature. Another flush should help. If not I'll swap HLAs from a spare head I have.
With the old transmission oil, the truck popped out of 1st coasting down a hill by my house so I was worried either the clutch was shot or the synchros were trashed. But with the clean oil, it stays in gear and doesn't overrev.
Check out this nasty 1mm thick layer of sediment at the bottom of the bucket I used to catch the radiator water. I have Prestone coolant flush in there now, I'll dump that after a few more hours of driving and see if it cleans any more crap out. Flush your damn coolant every two years, y'all!
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I'm always grinning to myself reading and
seeing for myself how much abuse and neglect these trucks can take but they always seem to bounce back with a little routine maintenance. Timex Trucks.
Next up is getting the rattling heater fan cleaned out and cleaning up the suspension and steering because it handles like it's on roller skates.
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