Originally Posted By: Spector
Originally Posted By: demarpaint
Originally Posted By: Spector
So, what benefit is there from shorter OCIs, sure, silver numbers will be less but they will be less at 3000 mile OCIs as well. That is just playing with the numbers not solving the issue,. high silver is not causing additional wear, the solution is not more frequent OCIs but find the answer to the question of why. Since everything else is good shorter OCIs are not the answer!I can always get great numbers if I change the oil every 1000 miles.
How do you propose he finds the answer to the question why? Maybe the oil is in a little too long, maybe the viscosity needs to be bumped up a grade. Certainly worth trying.Regarding changing the oil every 1000 miles. You might actually find changing your oil every 1,000 miles makes your wear numbers worse, and causes more wear. I believe there are studies out there that have supposedly proven that point. That has been discussed on this board too.
Since all other wear metals were within norms it is extremely unlikely that a change in viscosity, brand etc will have any bearing on bringing it down. Shorter OCIs will but on a PPM/1000 miles basis the result will be the same, high wear for this metal. So, find out what component of this engine has silver in it and start from that point. There are times also when one metal will wear high for life and have no bearing on the longevity of an engine. UOA is trend analysis and we don't have much of a trend here as yet but I would start by finding out what has silver in the engine.
As to OCIs of 1000 mile, I was just making a point that the metalcount could easily be reduced by simply shorter OCIs, just looks great but does not solve the problem when only one wear metal has high numbers. Plus, is the silver causing additional wear, probably not, unlike silicon in high numbers.
That makes sense, and worth looking into. There's one other thing to take into consideration. The silver can also be showing up later on in the OCI. Lets say for the sake of argument after 7k miles of the oil being in service. A shorter OCI might show little to no silver. If that's the case for a couple of OCI's that might shed light. Bumping a grade might also help with a softer metal like silver, especially if it hasn't been tried yet.