You get what you pay for with UOA results and Blackstones is a very good lab for any person doing UOA that is not a real expert at interpreting the results. Their comments are good and the real thing I like about them, is that if you have questions about your UOA that were not answered by their intial comments, you can e mail them and get a good reply. About the only thing I think they are wrong about is the lower TBN limit for the average oil, which they have set as 1. I think 3 is more sensible although I use a half of original figure due to extreme service considerations.
Once you have decided on your service schedule and are not experimenting or trying to extend it as I am, then an annual UOA (Or similar to fit your oil change timing) is a good insurance policy in terms of detecting coolant, fuel or air filter related Silicon contamination. If the results are good then they can help you sell the vehicle in some cases.
Originally Posted By: zerosoma
I got my oil sample kit in the mail but I don't know if I want to pay $25 for a testing analysis. I know it's good to know the condition of your vehicle but at the same time I wish it was cheaper.
Are there better or cheaper but just as good alternatives to Blackstone?
And if so please provide information, not just a name. Thanks!