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The weather was bad in the midwest and my daughter needed an oil change this week in her Honda CR-V, 2.4L.. She normally does it herself with M1 and a Fram Filter. Below are pictures of the oil before and after the oil change (spill and fill). Yes, the oil and filter was changed. This is not a...

In the past year I had three cartridge filters from the same manufacturer show significant media displacement upon removal, long before their service life had ended. The manufacturer sent them to a lab. I asked them to test the filter for efficiency. The lab used a Bubble Point test to check the...

I recently saw posts from users that said Penzoil Platinum is a 100% synthetic oil. The implication is that it is 100% PAO or PAO/Ester blend, not a Group 3 Hydro-cracked petroleum oil. I know there are well known 100% synthetic lubes on the market, such as Redline, Amsoil, Royal Purple, etc...

Attached is a UOA from a Saturn Transmission, probably worst wear analysis I have seen in 30 years. My daughter bought a used, one owner 04 Saturn Ion a few years ago. Her first car. It has ran fine except I noticed it always had firm 1-2 and 2-3 shift. It never slipped or showed any other...

Several months ago I think someone mentioned on this forum about using paper stock and oil drop test to view the cleanliness/particulate concentration of used oil. Attached is a photo of two samples I obtained. In the past I would just pull a dipstick and look at the oil, which is very thin...

I am looking for theory and operation on fixed orifice PCV designs. My GM service manual provides little information on it. Interested in learning about the pro's and con's of this type of crankcase ventilation. My 2012 GM Ecotec Gen II 2.4l has a fixed orifice in the intake manifold/cylinder...

The lab recently flagged my UOA for critical fuel dilution. It was at 5%, viscosity only slightly out of grade for 5W-30, TBN was above 2, below average amount of wear metals after 4k OCI. They added their."canned" response, "Check for source of FUEL LEAK. Fuel is at a SEVERE LEVEL. Fuel...

Which labs will do particle count testing of used motor oil? Not talking about diesel oil, just regular motor oil. Polaris Labs says it will damage their delicate instruments, and the dark color will not allow a result to be given. Even the attached oil sample, they will not test, because it...

I have a spreadsheet of 569 BSL oil samples, for the GM ECOTEC Gen II engine from 2006-2017 . I was not able to add the spreadsheet. I have revised the data and added averages, std devs, min, max, iron wear rates and comparisons between GDI and non-GDI versions of this engine for standard OCI...

Attached is my recent VOA for Amsoil 5W-30 Signature Series, Manufacturer date is 020619. Particle Count included. This was a bottle sample. The AC Delco 5W-30 Dexos Gen 2 with 115ppm of boron became quickly depleted(after 1700m), I assume the cause is from GDI fuel dilution, so I am hoping the...

Here is snapshot of FB Group that plans to infiltrate and repeatedly post YT videos, because their ogranizer, Bill Trammel, was banned by BITOG for repeatedly violating forum rules. The two FB groups in question are MACTGARAGE and MACTFORDEDGE

My latest UOA for my GM 2.4L Ecotec with GDI. History of fuel dilution per Polaris. The comments are 60 seconds worth canned statements as usual. NL = New Lube reference, AC Delco 5w-30 Full Synthetic API SN Sample 1 is Amsoil 5w-30, only 1530 miles due to timing chain and HP Fuel pump...

Has anyone investigated how Polaris Labs/Oil Analyzers determine their wear limits or flag levels? A few months ago before setting up an online account directly with Polaris. They told me they have a very large database of components, and history of oil analysis, in the millions. They had a...

I have read in the past year some debates about how clean new oil actually is and where to buy it. I recently had some work done at Chevrolet dealership in the midwest. They have quite a few dealerships in three states, and sell/service Honda, Kia, GMC, Buick, and GMC. They offered a...

Machinery Lubrication has an article on Short Volume Oil Changes (SVOCs) that was interesting. I have seen a few threads about running a quart of oil through the sump or running the engine at idle with a few quarts of oil to mix and drain as much contaminated oil out of the engine. I always...

I recently purchased a vehicle with a GM 2.4L Ecotec engine with the cartridge filter design. Mounted vertically on the side of the engine block. I have looked online, searched this forum and searched the factory service manual. How does the drain-back and by-pass functions work in this design...

For users of Liqui Moly, I am interested in getting your input on the product. I saw YT video posted by Bill Trammell on MACTFOREDGE and MACTGARAGE giving his analysis of the product based on spec sheet, SDS and VOA, and comparing to a Wal-Mart Supertech product. He immediately calls it a scam...