Hello BITOG. I've been lurking here for a while and I've finally done my first UOA. It's for my 2001 Subaru Impreza Outback Sport with ~159k miles (purchased last year at 146k). The OCI was 5k miles and the oil used was M1 5W30; previously, Valvoline conventional oil was used. The beginning and end of this OCI were the first and second oil changes I've done myself. After taking the sample I knocked the bottle and lost about 1/3 of the oil therein, so I topped it off with oil from the filter (I noted this to Blackstone, though they didn't mention it in their comments). Without further ado: My thoughts: - I'm glad the headgasket looks good (no antifreeze) - TBN looks pretty darn good and viscosity looks good; extending the OCI to 7.5k in the future seems reasonable. The EJ22/EJ222 must be easy on oil. - I assume the numbers for calcium, magnesium and phosphorous are off from the averages is because the average additive pack and M1's additive pack differ; am I correct in this? The iron and lead wear metal numbers are a little high though, so I'm considering following Blackstone's advice and doing another 5k OCI and getting another analysis done. Then again, I'm only hoping to keep this car going until 210k miles (that's when the timing belt, water pump, tires, and a host of other things all need to be done) so I'm not sure whether slightly high wear numbers (for a 5k interval versus the 4.2k interval the averages are based on) are anything worth worrying about.