clemsonfor
Super Member
In the early 50's I worked at a gas station in western maryland, The owner had 50 gal drums behind the station where we would dump oil drained during oil changes. We were instructed to keep the drain pans/containers, clean and the drums were marked indicating which was the active dump drum. When a drum was full, it was sealed and would set for months without being disturbed. After the drum set, the owner would take a hand pump with a pickup pipe which reached about 3/4 down into the drum, pump the oild out into glass quart jars with a metal pour spout and cap and sell the oil for .25 a quart. The oil looked exactly the same as the new oil we sold. When I was finally able to purchase my own car, I used that oil for years. I have been told oil doesn't wear out, it simply gets dirty. I guess the oil in the drum set there until the solids settled to the bottom.
I think we have established that oil dosent wear out, but after sitting for months there is no additives put back into that oil though. I dont doubt you ran your car for years on it. I could run my car or truck on the syn i drain out of my wifes toyota at 6-10K and probly never have a problem either, but i dont do it. Its the mental your doing the right thing for my engine that keeps me from doing it.
Well my saturn and Ranger both burn and or leak so much oil that i really only might nead to drain it every 2 yrs after 20-25k miles, that and change a filter. But i dont i still change it like all vehicles to get that last bad out of it.