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    2008 BMW M3, BMW TwinPower Turbo 10W-60, 4966 mi

    Pic is incorrect. Here’s the correct one.
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    2008 BMW M3, BMW TwinPower Turbo 10W-60, 4966 mi

    Leaking and using. Not sure how much of each. Haven’t seen the plugs in a bit. Don’t forget there were 4 track days on this oil.
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    2008 BMW M3, BMW TwinPower Turbo 10W-60, 4966 mi

    Previous UOA here. 125133 miles on the engine at the time of sampling. 2x 2-day track events on this oil (NJMP Thunderbolt, intermediate pace, street tires); one event at the beginning of the OCI, and one at the end. Aluminum is back down to previous levels and all other wear markers remain...
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    MB229.5 and MB229.51

    Motul at least goes out and gets the approvals, so you get to spend your extra money and effort without sacrificing what matters. :]
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    MB229.5 and MB229.51

    It's easy to imagine that rare and expensive things are better than cheap and common things, because... they often are. As you well know, having bought a C63. :] For engine oil, all you can really know (that matters) is whether it meets the manufacturer's spec, and the best way to know that...
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    Windows 10 backup question

    Doesn't BitLocker encrypt the whole drive? I want to end up with an encrypted file or set of files that I can transmit in encrypted form, with or without the drive itself.
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    Windows 10 backup question

    I want to make incremental backups of a folder (150-200 GB) on a Windows 10 PC. I want the backup file(s) to be encrypted so that it/they can be copied to other drives but not be readable without a key/pwd. Is there a way to do this with Windows 10's native tools, or do I have to go third-party?
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    MB229.5 and MB229.51

    Oil viscosity Tire width Ground clearance Overall vehicle size As much as necessary, as little as possible.
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    3.9L V12, over 150 hp/L, over 12k RPM, Shell 0W-40

    Very true. They may be using multiple ECUs (e.g. one per bank). I know that's been a thing for a while.
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    3.9L V12, over 150 hp/L, over 12k RPM, Shell 0W-40

    That's kind of the point though. This is a fundamentally different kind of engine because the design criteria are different, so the bike engine analogy doesn't work the way it seems like it should.
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    3.9L V12, over 150 hp/L, over 12k RPM, Shell 0W-40

    Fair point -- but there must be SOME reasons, or else someone somewhere would have done it at least once, no? This is the highest redline in a production car engine ever, and one of the highest specific outputs period, let alone naturally aspirated. Second highest redline is ~11k, and that...
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    3.9L V12, over 150 hp/L, over 12k RPM, Shell 0W-40

    Gordon Murray Automotive T50. The successor to the McLaren F1, by its original designer, designed from a clean sheet with no corporate constraints. Engine is an all-new clean-sheet V12 from Cosworth: 3.9L, naturally aspirated. Over 600 hp, which means over 150 hp/L -- again, no turbo or...
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    2008 BMW M3, BMW TwinPower Turbo 10W-60, 5008 mi

    With FCP Euro, I see little reason to extend beyond 5k. Might even shorten it depending on track time.
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    2008 BMW M3, BMW TwinPower Turbo 10W-60, 5052 mi

    Previous UOA here. 120167 miles on the engine at the time of sampling. 1 track day on this oil (NJMP, novice pace, street tires), near the end of the OCI. I had to top off with 1L shortly after that track day, so these numbers are probably mitigated slightly by that. Tempted to blame the...
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    5w50 in place of 10w60 for BMW M3

    I understand this perspective, but personally I'm shocked these engines don't have MORE problems. The fact that they're all pretty much bulletproof outside of 1 or 2 quirks is astounding.
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    5w50 in place of 10w60 for BMW M3

    They also have lower redlines. Don't loads on the bottom end go up linearly with torque but exponentially with RPM?
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    5w50 in place of 10w60 for BMW M3

    Rods and pistons are shared with the S85. It was indeed thought that the updated BMW bearings had no copper. This was later proved false, and the initial source of that info was quietly updated, though few people seem to know that. The new bearings do in fact have a trimetal construction...
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    5w50 in place of 10w60 for BMW M3

    Oh, heck yes. One curiously underappreciated trait of the S85/S65 (IMO) is low-ish rod bearing surface area vs. many engines with similar specific output and redlines. AFAICT this is mainly because the rods themselves, and thus the rod bearings and crank journals, are relatively narrow. I...
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    5w50 in place of 10w60 for BMW M3

    [accidental duplicate]
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