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Sounds like the media may not have changed in 5 years. This is the most recent thread on it and it mentions the synthetic media. https://bobistheoilguy.com/forums/threads/efficiency-of-mahle-filters.323446/

I liked the build of the filter I currently have in service, it looked perfect. So, got another one and they'll be lifetime replaced with FCP. However, not super thrilled about this one, pleats ended up at an angle. Anyone have up to date efficiency numbers for Mahle? From their website...

Got my first credits today - $120 for ATF, wipers, and a cabin filter. Question - if you order over $49 in parts with credit do they still ship for free?

Had this in my Buick for 17k miles and it's been fine. Same quality as the original plug with the addition of the magnet.

Havoline 10W30 in everything

It's because oxygen is a component of an ester group. So the ester oils are inherently oxidized to some extent. Just not the bad kind of oxidized. 😄

I tried the straight to HPL approach with my VR6 and just ended up burning a lot of expensive HPL oil. Wish I had gone straight to the piston soak - which I did later and so far have zero oil consumption after. Now running HPL to keep the rings clean from here on out. I would just do the piston...

Figured updating in this thread is better than starting a new one. After my patience ran out with the oil consumption and the I did a piston soak as noted above. Well, it's been 1k mi since that and I'm happy to report the oil level has not dropped at all. Will continue to monitor.

I had a similar experience with my Buick. Ran EPR at the last oil change, and oil was clean after 1k mi when it would usually look dark. Now after 5k it looks like used oil, but not like it would have previously.

+1 for Bosch in both cars.

17 Porsche Cayenne 3.6 VR6 ~5800mi OCI, 83345mi Out: HPL Euro 5w30, STP S11242 In: HPL Euro 5w30, Mahle OX983DECO I wanted to run this oil for a year and test. However, oil consumption wasn't great as I topped up 3qts during this run + 1qt for the filter change...

I coated our granite countertops with ceramic coating. Made them super shiny and stain proof. If you're looking for other ideas.

They're $50 each directly from wearcheck + UPS shipping.

Since this has digressed. Not sure how much help this is, but this sounds like a total organic carbon problem. Naturally occurring bacteria have enough food to consume all the available oxygen in the aquifer you're tapped into. Once the dissolved oxygen is gone, they go looking for other sources...

I defer to this explanation:

Which part? When I had a Prius it was often that I logged vitals with a OBD2 dongle and the Torque app. It took at least 30min or more of highway driving for the transaxle temperatures to plateau. Wish I still had some screenshots to share. Otherwise, I just considered the available data -...

Since we're talking about a vehicle utilizing numerous details to eke our every efficiency possible. There could be an opportunity, however small or large to gain an advantage with the better cold flow properties of the CC. Keeping in mind that it takes a very long time to get the transmission...

Are you indicating that the ATF in a Prius eCVT is in contact with the hybrid electrics? That has been debated ad nauseum in Prius forums and elsewhere. If you watch here there are less electrical components here than in a traditional automatic transmission. The gearbox holding the lubricant is...

Prius eCVT is a single planetary set, differential, no clutches, no valves, no gear changing, and water cooled. If it were mine, I'd go ATF Green CC and forget about it for at least 100k mi. It's not very demanding on the lubricant.