Ok Bobbers, I have a vacuum pump and tank so I can remove fluids in a very convenient way. I have noticed that on many threads wear rates go down with extended OCI’s.
Some of these seem attributable to the quality of filtration but another theory is that the additive package is more aggressive when it is new leading to new oil wearing an engine more than old oil does.
Or put another way the trend in wear is lower for the last percentage of use than the first. So my thought is the idea of partial oil changes. One of the other drivers towards this idea is that the folks using bypass filters with very long OCI’s add make up oil and often have very good UOA’s. So for your consideration:
1) Is the idea of partial changes every 5k on dino or 7k on syn seem like it has merit both for cost and the best chance at lower wear?
2) What percent of oil should be removed
3) Would you consider using a more exotic oil and perhaps additive with this method of oil change management?
Obviously the only reason for this exercise is…well…sheepish grin…I am a nerd about somethings!
Some of these seem attributable to the quality of filtration but another theory is that the additive package is more aggressive when it is new leading to new oil wearing an engine more than old oil does.
Or put another way the trend in wear is lower for the last percentage of use than the first. So my thought is the idea of partial oil changes. One of the other drivers towards this idea is that the folks using bypass filters with very long OCI’s add make up oil and often have very good UOA’s. So for your consideration:
1) Is the idea of partial changes every 5k on dino or 7k on syn seem like it has merit both for cost and the best chance at lower wear?
2) What percent of oil should be removed
3) Would you consider using a more exotic oil and perhaps additive with this method of oil change management?
Obviously the only reason for this exercise is…well…sheepish grin…I am a nerd about somethings!