Anyone interested in having their oil analyzed can get free kits from Blackstone labs. They will send you a collection kit for free and then it's only $20.00 to get the analysis done. For those of you who are running an extended drain (5000 miles +) for $10.00 more they will
give you the TBN (total base number) which measures the amount of active additive left in a sample of oil.

Everything you need to read your analysis from Bob the oil guy

Here is a 7000 and 9200 mile analysis of the Mobil 1 15,000 mile EP oil in a Mighty Titan.

Butler Caterpillar Labs link:

http://www.butler-machinery.com/serv...upport_oil.asp

__________________