Where to send my oil for analysis?

Ok, thanks. I'll stick with the Schaefer's, they seem to be the cheapest with the TBN included.

 

The CAT kit is 13 but if you want TBN it's another 20 and if you want postage they charge a few extra dollars for that too. Schaeffers seems like the best deal currently for 28 postage paid if you want TBN and TAN done. Blackstone is 38 and Amsoil is 34 if you want them to do TBN. I'm going with Shaeffers.


Webscope Lab Oil Analysis Test Kits - Engine - Gear Box - Transmission - Differntial | Buy1oils.com

 

Last time I bought a bunch of CAT ones they were $13 including postage.

 

To do CAT lab kit costs $16 here in WA.

 

i use cat, i have used Blackstone in the past before as well.

 

Different CAT franchisees different pricing. Still cheap.