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JHZR2 - I used a funnel that I believed was clean to fill the last, high glycol sample bottle. I later learned someone had made a rare effort to care for her car and used that funnel to add washer fluid. For this sample, I used a very clean Vacula vacuum bleeder to draw the oil through very...

Yes, it's RLI, not RL. I should've clarified.

I took the sample with a vacuum extractor through the dipstick port immediately following 20 minutes of driving.

Used Oil Analysis: 2006 Honda Civic Si (2.0L, I-4 engine) Mobil 1 oil filter (new at oil change) Honda OE air filter (new at oil change) Shell V-Power Premium fuel exclusively 6148 miles on oil sample (OCI at 15% on Honda's Maintenance Minder) 25720 total miles / no modifications Valves were...

Thanks for the info. I put the readings in the categories as defined in the lab report.

Although I'm not known as sTreeTRazrX among my friends, I've taken the engine to 8k many times. I think it's clear that the oil was basically worn out (and/or fuel diluted), but without UOAs over the life of the oil, it's hard to pinpoint when things went awry. If it wasn't so expensive, I'd...

I would think most of the break-in wear would've occurred during the first (0-5k miles) and second (5-10k miles) OCIs, but perhaps not.

Terry is guiding me to enlightenment. Mobil 1 boasts a possible 15k service life for their EP oil, but I wouldn't want to read those results given the numbers above. I switched to RLI 0W-30 PCMO and will post results when they're in. The engine spins a little better on cold startup with the...

Obviously, I'd recommend NOT following Honda's MM oil change schedule. At least, not following it if you're using Mobil 1 5W-30 EP for a MM-recommended 9420 miles. I purposely ran the MM right to 0% before the oil change so I could see just how awful a job it does with this particular interval...

Used Oil Analysis: 2006 Honda Civic Si (2.0L, I-4 engine) Mobil 1 oil filter (new at oil change) Honda OE air filter (new at oil change) BP Premium fuel exclusively 9420 on oil sample (OCI at 0% on Honda's Mantenance Minder) 19572 total miles / no modifications Oil in use for 8 months (late...

These two posts sum up why I'm giving RLI's products a try. To date, they appear to perform at least as well as any other PCMO. The available evidence gives me confidence in the oil, and the renewable source is also encouraging. In the spirit of doveriai, no proveriai, I'll use it, while...

From a business standpoint, making a concentrated, additive type product would be foolish for RLI, and to be honest, I don't see much value for end users, either. RLI's oil doesn't cost that much more per quart than the top tier PCMOs of their competition, and over time, it may costs less due to...

I exchanged emails with Terry and spoke with Bill Garmier about RLI's gear lube. I had a long talk with Bill about his company, experience, and oils, and Terry's emails have been very helpful. RLI 0W30 and 75W90 GL-5 LS will be in my '06 Honda Civic Si soon, and Terry will be doing UOAs on both...

No kidding. I'm afraid if I buy from them, I might find Bill and Terry changing my oil for me. Any news on the RS4 front?

Which is why I want to use the best oil and filter I can, and will do a UOA long before approaching 10k. If the actual, UOA-proofed OCI coincides with Honda's, so much the better for me, my wallet, my engine, and the planet. Terry kindly emailed me about the HD difference: "The difference...

RI_RS4 and Terry, thanks for all of the biosyn information. I'm planning to change from Mobil 1 Ext. Life 5W30 to RLI 0W30, but I noticed that the RI_RS4 flavor carries the HD designation. My '06 Honda Civic Si is calling for a 10,000 mile OCI with 0W30, so I'd prefer RLI's hardiest oil in an...