Recent content by kschachn

A question I asked as well and has yet to be answered in any meaningful way.

A good example of how a low pour point doesn’t automatically result in a superior winter rating.

Is this you? https://www.f150forum.com/f118/advice-needed-engine-salvageable-578896/ As a direct answer I’d be pretty unconcerned about summer viscosity given that level of sludge and deposits.

You are definitely his target audience.

Who said that?

I’d love to hear your analysis of that “plenty of data” and how “it’s there”. And you misunderstand, it’s not that I don’t like used oil analysis. I think they have a use. But it’s not to demonstrate comparative wear between two oils like is being presented in that video, nor most times as it...

The objective is measuring wear differences between oils. What I’m saying is that using these UOA like this is technically wrong. Flat wrong and useless for that determination. And a YouTube influencer who claims otherwise is completely unwarranted in claiming that it is.

Short-term, nothing. But you'd be foolish to keep it that way IMO. That's not a diesel rated oil and towing really isn't the issue. I can't think of a valid reason why it should remain in there any longer.

Here is what Chamberlain says on their website. That seems crazy short to me:

As you note, nothing is going to stick to such a material without some kind of surface modification. I wouldn't expect much no matter what.

My similar Chamberlain chain drive openers are both 26 years old, I replaced the drive gear assembly once, perhaps twice. We have a standby generator so I never needed a battery, nor is it a detached garage where I can't get in other than the door. Like everyone else I say keep it.

One of the many uncontrolled variables here and a good example of why this type of analysis is not used for comparative wear comparisons.

Apparently they do. Apologies I was confusing it with their expressly monograde oils.

No, some comes off in particles that are filtered out to protect the ICP. You need some preprocessing of the sample to measure that, or a different analytical method.

There is more than one standardized test that is part of the Sequence IIIG or IIIH, ASTM D7320 or D6891. Similar ones for compression engines plus others that aren't part of the Sequence. None of them are a UOA and for good reason. I'm not sure why you keep stating LSJr should be part of this...