Originally Posted By: ctrcbob
In addition to my above post, I once was reading the manual (book) given by AmsOil to their dealers. The manual does say that AmsOil will guarantee their oil filters, however in the fine print, in the back of the book, it also said that the dealer must return the bad filter to AmsOil. (gotcha!),
I told that dealer that the warranty was not worth the paper it was printed on, if you first have to return the filter to the manufacturer.
If your filter ruined your engine, SEE A LAWYER FIRST.
Hate to break it to you, but unless you got deep pockets and can do a "CSI" chain of custody trail on any filter you remove, any independent testing of a suspect filter outside the filter maker is going to be a long drawn out legal process.
All a filter maker is going to do if you refuse to return a filter to them for testing is stonewall you on the issue if the filter you have in hand actually came off the vehicle in question.
While it is nice to error on the side of paranoia and not trust a filter maker, they are actually the best to deal with a claim and the vast majority of the time they will make good.
The rub is that many things on the vehicle can and will cause a filter to fail external of the filter actually being bad. People do not like hear that but that is the sad fact most of the times when a damage filter is sent in and through through analysis, external factors like defective mechanical bypass and other issues related to the engine caused the filter to fail.
So why it is easy to call your nephew a [censored], he did the right thing to begin with and sent it in. No reasonable civil jury is gonna award anybody anything if the filter maker can not have access to the unmolested filter for analysis.