willysmjeeps.com

I've been considering pulling an annual motor oil sample and sending it off for testing. Cost seems to run $25-$40 per test. Has anybody been doing this for their jeep? I think maybe it could provide useful information about the condition of the motor especially over time, but need to find the right testing outfit and be able to decipher the results. Worth it or not?

http://www.oaitesting.com/images/docs/O ... -Guide.pdf

Tanks!