Originally Posted By: Alexey88rus
Originally Posted By: dnewton3
So are you a user, or promoter, of the additive?
if I'm a regular user or I want to talk and show something about the new product
does this affect the UOA results I show?
Yes - it does matter.
I'll address this on two fronts ...
1) the results are OK to post, but I don't know what they really prove. The Fe is high in a couple of them; there's nothing astonishing in these. So what's the point here? The additive is clearly visible in the UOA, but the Fe shows high wear rates. Four separate UOAs from four separate vehicles shows ABSOLUTELY NOTHING IN A STATISTICAL SENSE. You are welcome to your opinion, but mine is that this additive did zilch to improve anything, and the high Fe wear is not something I'd be flinging about the internet as a great achievement. While the additive may not have created the issue, it certainly doesn't give a glowing example, either.
To quote you:
"
4 different samples from 4 trucks, same route, same oil, same diesel... It's possible to do a % comparison with 4 samples."
While I agree it's possible to do a comparison, it's also REALLY BAD methodology to do so in this example. Clearly you have zero idea of how to administer a clinical experiment with any validity. I do statistical process quality control for a living; I would know a good DOE versus a bad DOE. I agree that you can compare/contrast these, but with absolutely no ability to make any reasonable, rational conclusions whatsoever. This is about as haphazard as it gets. It's "possible" to do a lot of different things in life; that doesn't mean they are all good ideas, or have rational outcomes. Just because you did something, doesn't make it science ...
You would be well served to start by reading this:
http://www.bobistheoilguy.com/used-oil-analysis-how-to-decide-what-is-normal/
This would be the absolute minimum of understanding of how to use UOAs and do comparisons and contrasts. It goes much deeper than this, but this is a great place for laymen to start understanding how data should be collected, used and analyzed.
2) if you're going to promote a product in a commercial/business sense, you need to contact the administration and register as a site advertiser.
Locked.