With 190,000 miles on it, Rusty was so clean underneath when I took off the oil pan that it looked like a new engine from the bottom. Rusty has run on nothing but Mobil1 10w 30 for the past 50,000 or 60,000 miles with 5,000 mile change intervals.
Bowtieguy...Get a hand oiler and put it in that. There is always something that needs to be oiled like you lawn mower axle or something. That type of oil is not meant for an engine.
And you said "I have seen what dino oil does to engines".....dino oil in itself, does not adversely affect engines, improper maintenance does. I have run dino for over 200,000 miles in my other GMC truck and the motor is clean and no leaks, and it does not burn oil, and starts every morning no matter how cold it is out. Synthetic oil is better, but dino is not "bad oil" just because it is dino.