Hi all, Below is the oil report. I'm providing this first, but I ask that you read through my notes (below the report) and thoughts prior to commenting, as I feel it'll add alot of valuable background info: Previous run was SSO 0w30, K&N air filter, AMSOIL EaO oil filter. Two runs ago was Series 2000 0w30, K&N air filter, and Purolator PureOne oil filter.) Notes: Oil Consumption: I burned a total of 3.25 quarts, but only 2.5 quarts were added this run (It was 3.5 quarts last time over ~2k less miles). This is important - my sump was down .75 quarts when I took this sample. I had not added any make-up oil in about 5000 miles, to prevent skewing the result. Air Filter: K&N Drop-in panel filter. At the beginning of this run, it had 14,500 miles on it without being cleaned. So by the end, it had run over 30k miles. I wanted to see how effective K&N's continued to filter over a 30k run, and I'm very happy with the results. My silicon went DOWN (relatively) even with a longer run on the oil and a decrease in total sump capacity (at time of sample) of about 15%. Oil Filter: Purolator Pure-One PL14610. My last run was AMSOIL EaO, so I wanted to compare and see if I saw anything worthwhile in the more expensive filter. The AMSOIL probably provides much better filtration of small particles, but my report says it didn't make a difference and the Purolator held on strong for over 16k miles of filter build-up. I checked out the filter carefully after removing it, and it really looked good inside (i.e. everything looked to be holding up fine). Driving Conditions: This oil was run for 9 months, including 5-6 months of freezing regularly freezing weather, tons of road salt. On the coldest days, I'd warm my car up for 1 minute max. Most of the time I just let the idle drop from 2000 rpms to 1500 rpms and then take off (about 15 seconds worth of idling). I always attempt to avoid idling for more than 2 minutes straight, in all conditions. I drive the car hard. Through 16000 miles, I was still redlining the car about 5-10 times a day (8000 rpm redline). I shift at 4500-5000 rpms once she's warmed up. I cruise at 3500-4000 rpms on the highway. Even with all this, I still get (religiously) 28-30mpg in mixed driving, and 32-35 when doing lots of highway. No track days, no autocross. Overall comments: Extremely pleased. Every wear level pretty much decreased on a PPM/1000 miles basis, especially considering the lesser total oil volume for the diffusion of dissolved metals. Very pleased with the filtering, the viscosity, the flashpoint, and the TBN. I want to take a second and give applause to AMSOIL SSO. This is a higher-revving, hard-driven engine (albeit a Honda engine) and this oil has proven that it can go for 16000-20000 miles for me. During it's run over the past 30k+ miles, oil consumption has slowly decreased to less than 1 quart every 5k, which is completely acceptable to me. I've now switched to Pennzoil Platinum 5w30....I had bought a bunch of it to use in my 08 Legacy GT, but decided that car wants a heavier oil. I'll run 10k on PP 5w30 and do another check to see how it compares head-to-head with AMSOIL. Love to hear thoughts and comments! Joe P.s. A humorous note on cleaning the K&N filter after 30k. Holy [censored]. I had to clean it for 20 minutes straight to get all of the debris out. And I'm not talking fine grit. I'm talking CHUNKS of leaves, twigs, and other stuff that was caught in it. I swear I must've had about 15-20 oak leaves worth fall out. I can't believe the car was still breathing through all that [censored].