OVERKILL
$100 Site Donor 2021
Originally Posted By: sdowney717
Most oil changes are over rated, my cars have proven that. You know a filter continues to filter even if the bypass were to open. A bypass valve opening up is not an all or nothing event.
I often wonder if a very cold and too thick engine oil could not flow thru the filter so the bypass opens even with a new filter.
I think oil today is much better quality than decades ago. The engines I work on I never see cylinder ridges like before. I do see worn bearings and cranks due to grit in the oil. So your better off using the best filter like a Pure One and using synthetic really makes no difference versus full synthetic. My other car, I have not changed the oil in 40,000 miles, only changing the bypass and main filters.
Since I know how to repair engines, I do somethings just to see what happens.
Here is my boat engine, which the Palmer Marine company made a very big mistake in the setup. They left out a full flow oil filter, and only used a bypass setup. Surprisingly, it was common decades ago to do this. The result is bearings wear out, which they have on this motor. This one only the main bearing showed wear. And the engine had a prior rebuild where someone expanded the pistons (called knurling) instead of replacing with new ones. I ended up rebuilding with all new bearings and new pistons and rings. And added a full flow setup with a Pure One . I kept the original bleed-stream bypass filter.
https://picasaweb.google.com/105248911187594415233/PalmerReverseRotationInternational392Engine
Question for you:
How does an engine that burns a quart every 500 miles show that oil changes are over-rated?
Most oil changes are over rated, my cars have proven that. You know a filter continues to filter even if the bypass were to open. A bypass valve opening up is not an all or nothing event.
I often wonder if a very cold and too thick engine oil could not flow thru the filter so the bypass opens even with a new filter.
I think oil today is much better quality than decades ago. The engines I work on I never see cylinder ridges like before. I do see worn bearings and cranks due to grit in the oil. So your better off using the best filter like a Pure One and using synthetic really makes no difference versus full synthetic. My other car, I have not changed the oil in 40,000 miles, only changing the bypass and main filters.
Since I know how to repair engines, I do somethings just to see what happens.
Here is my boat engine, which the Palmer Marine company made a very big mistake in the setup. They left out a full flow oil filter, and only used a bypass setup. Surprisingly, it was common decades ago to do this. The result is bearings wear out, which they have on this motor. This one only the main bearing showed wear. And the engine had a prior rebuild where someone expanded the pistons (called knurling) instead of replacing with new ones. I ended up rebuilding with all new bearings and new pistons and rings. And added a full flow setup with a Pure One . I kept the original bleed-stream bypass filter.
https://picasaweb.google.com/105248911187594415233/PalmerReverseRotationInternational392Engine
Question for you:
How does an engine that burns a quart every 500 miles show that oil changes are over-rated?
