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    Mobil 1 ESP X4 0W-40

    Yes it is, it’s ACEA C3 based. It won’t really make a difference vs the 5W-30 but it is “better” on paper.
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    2026 BMW m340i 0W-12 Only?

    It’s this simple, under warranty for TU2 engines I would use LL17FE+ or LL22FE+ oils to avoid any awkward conversations with dealer. There are “better” oils like LL12FE or LL04, but in the US it’s just easier to use something the dealers understand. Out of warranty use LL04. I will agree with...
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    2026 BMW m340i 0W-12 Only?

    ESP 0W-30 doesn’t have BMW approval but 5W-30 does. I would just use the BMW LL17FE+ oil in warranty probably. If the engine can safely take a 0W-12 the 20 will provide more than enough HTHS for street driving.
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    2026 BMW m340i 0W-12 Only?

    If the car has an OPF, I would probably run the LL-17FE 0W-20 because LL-12FE and LL-04 in 0W-30 is very rare in North America. Mobil 1 ESP 5W-30 is the only readily available 30 grade LL-04 I think at retail.
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    Porsche C20 and C30 engine tests

    C40 (plus GT) and A40 are the “real” Porsche engine oil specifications. The others are VW clones as far as I can tell.
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    Looking for opinions and experience with a BMW E46 M54 motor.

    No way. M54 does not have rod bearing issues. Even S54 is good to 100k at least. Oops didn’t see Marcozi’s reply. Simply because S54 isn’t based on M54 despite numbering. The S54 is based on Euro S50B32. S54 has an iron block and shares pretty much 0 components with M54 other than maybe some...
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    Looking for opinions and experience with a BMW E46 M54 motor.

    Mobil 1 Supercar 5W-50. Mobil 1 15W-50 could be good on the cheap. HPL, Redline, 300V as Edy said.
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    Sil Glyde on all brake job lubrication points? - 2011 RX 350

    Not that I’ve seen yet but it’s only been a few years
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    Sil Glyde on all brake job lubrication points? - 2011 RX 350

    Yes, CRC Silaramic is the only one that I will use since it’s a full silicone base.
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    Sil Glyde on all brake job lubrication points? - 2011 RX 350

    It’s simple: silicone-based for pins or any rubber contacting surface. Anything else on metal on metal. Mission or CRC silaramic is good on pins and ATE plastilube or something hard to get off on ears.
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    Redline vs Mobil 1, any real difference?

    Can you imagine this guy being your doctor? Yikes.
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    Redline vs Mobil 1, any real difference?

    Because it has full saps euro levels of additives, plus extra ZDDP. Look at voa of the SP version. It is very clearly the FS Infineum package with some extra ZDDP, minor variant if anything. In other markets it has ACEA A3/B3 but with same PDS numbers also. It has no approvals because it’s...
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    Redline vs Mobil 1, any real difference?

    The datasheet plainly says the HTHS is higher and it doesn’t have approvals because no 15W would get an approval but it clearly has the same package as the FS Euro oils. Sorry but you’re just wrong.
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    Redline vs Mobil 1, any real difference?

    The 15W-50 has a slightly higher HTHS (probably retains it a bit better also) and the additive package is the same as the FS 0W-40 and X2 5W-50 now except it has 200-300 ppm additional ZDDP. It’s a good option if your climate and use cases allow for a 15W like a summer car only.
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    Fiat Doblo 1.4L Petrol 30,000 km OCI safety?

    Does Fiat really recommend 30k km oci? Seems doubtful
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    Auto OEM's refuse to sell cars in California unless they’re allowed to track you

    Agreed, but we are done already, all the small towns near me are installing speed and license plate cameras. They will just piece it all together instead of tracking you directly.
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    Mobil 1 ESP 0w40 in GM LS Engines

    No, ESP Formula was Supercar before rebrand. It’s similar but older and seems to have the less robust VII. ESP X3 and X4 are from the Porsche line of formulas.
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    LL-01 FE 0W-30

    Motul or BMW
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    Oil for cars that sit for months at a time

    Mobil 1 15W-50 is cheap, available, and has API SP additive package like the 0W-40 FS but more ZDDP.
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    Mobil 1 ESP 0w40 in GM LS Engines

    FS is still very good, but it has less robust VII compared to whatever they are using now in the ESP 0W line. FS loses more viscosity in KRL test. ESP X4 also starts at a higher HTHS (3.8 cP).
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