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I've been chasing the cause of high aluminum readings in my Civic since new. After finding the OEM air filter lacking, I installed a Napa Select filter and that brought the silicon under control, but the aluminum remains high. Having seen MikeySoft and Nyati's experiences with lab variation in...

Here's the latest UOA for M1 AFE in my Civic. It looks pretty darn good with the exception of the high Aluminum reading and a KV100 that I wish were a bit more stable. Driving is "extra-urban" with fairly frequent long trips of 100mi+. Oil was changed 73 miles after the OLM read 5%. As others...

SN/GF-5 flavor of AFE 0w20 of course. Oil was run from mid-February to Mid-July, so weather ran the gamut from cold to hot. OLM was ~160mi past 5% when changed. It appears I've mostly solved my grit ingestion problem, though Aluminum and Silicon are still higher than I'd prefer, but are now in...

Surfing around here tonight I realized I forgot to post the latest UOA for my Civic from back in February. I've been chasing high Aluminum and Silicon readings in this car so I did an intermediate sample for this OCI at 2,700 miles. That UOA report is posted HERE. I've switched from Blackstone...

Here's the latest UOA on my WRX. Oil is Redline 5w30, OCI was 7,250 miles. Filter is an OEM Tokyo Roki AA100 with filter magnet. I've switched to OAI for my UOAs, when you include KV40 and TBN testing they're much cheaper than Blackstone. Comments are equally worthless though. I've stopped...

I did an intermediate sample in my Civic in the quest to find the source of high Silicon and Aluminum in my UOAs. The obvious suspect is an intake leak, but I've been unable to track it down. Previous UOA is here. Blackstone's comments on this UOA are worse than useless. If this oil were run to...

Here's the latest UOA from my Civic. Now I am worried about the Si and Al wear. I've checked the airbox, and when fully installed it seems to be well sealed, but upon closer inspection I found some slop in the rubber boot which mates the intake pipe to the MAF sensor on the lid of the airbox...

I posted these over on NASIOC a while ago, don't know why I didn't post them here at the same time. Lines for the oil and filter have been added to blanks in the report. I changed the oil frequently for the first 10k miles with conventional oil, which I now see was totally unnecessary. I also...

Here's a UOA of the new Conoco Phillips made Honda Genuine Ultimate Full Synthetic 0w20 (API SN), including viscosity index. I previously did a VOA on this very batch of this oil here. This oil started out quite thin and then sheared about 10%. This time Blackstone didn't forget the VI...

Here's a VOA of the new Conoco-Phillips made Honda Ultimate Full synthetic 0w20. I asked for a VI measurement, but Blackstone had already used up the sample in the flashpoint measurement, so we don't have VI . That said this oil is definitely different from the Honda Genuine 0w20 made by...

From The Car Connection ( Why Does My New Car Have No Temp Gauge) I'm sure I'll get a variety of opinions on the disappearance of temp gauges, but the piece of that article which really caught my attention was regarding 20wt oil: "And with the thinner oils being introduced this year and over...