Oil analysis

udidwht wrote:

185EZ wrote:

udidwht wrote:

185EZ wrote:

Maybe the oil is still "good" but to keep any oil in a motor for over a year is just asking for problems.
There is still stuff in the oil that's hard on seals and gaskets.

Again incorrect. A simple search can provide a lot of info on this.

There is not a single engine that has ever had an oil related issue as a result of going 6000-7000 miles.

Never. Fact.

Changing the oil more often than necessary has consequences. Oil requires some miles to be put on it before it actually lowers wear effectively vs 100% virgin oil out of a bottle. Much the same with an oil filter. A filter filters better after haven been in the engine for 1000 miles+.

A finding of high copper alone is not an issue and quite common unless other abrasive wear metal/s such as iron, aluminum, chromium, etc. are present at higher than normal levels.

Some reasons for high copper level:

1. Oil cooler/s (GM oil leaching from cooler)
2. Radiator/s tubing
3. Leaks from radiators (no leak in mine)
4. Oil additive/s

The above instance (high copper) would also be showing other higher than average wear metals & contaminates in an analysis if there were an issue. Copper in and of itself? No. Normal.

Again nope.
I never said anything about oil issues with oil going 6000 to 7000 miles. My manual suggests 7500 miles. I'm not going to send in an analysis to find out if I can still run the oil after that. I'd rather spend the $50 and just do an oil change.
I also said keeping old oil in the motor for over a year isn't a good idea.
Is 20w50 recommended for your climate?

edit;
I can't find anything that suggests oil and filters are more effective after 1000 miles.
If that's true then you sent in for an analysis at only 2,720 miles
Only thing I heard was KN air filters would do that.