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    Down the Gear Oil rabbit hole again: for Eaton Torsen “upgrade”

    I’ve read numerous threads on BITOG, F150, FordTransitUSAforum, etc, as well as Eaton’s own website, and am now more confused than before. 😵‍💫🤯. Does anyone have a 2023 opinion of which gear oil might be best for the Eaton TrueTrac? Any real life experience from someone who has tried both...
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    UOA Castrol Euro (mix 0w30 & 0w40) in 2007 Subaru EJ25 after ~4770 miles

    Whoops sorry, double post. Moderator, can you remove? Apparently, this created 2 threads. My bad. @dnewton3
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    UOA Castrol Euro (mix 0w30 & 0w40) in 2007 Subaru EJ25 after ~4770 miles

    UOA of the (roughly) 50-50% mix of Castrol 0w30 and 0w40. I will ask them to do a GC fuel dilution test, like I specifically asked for originally. Oil Analysers comments are crap, but I like that they do nitration, oxidation, and usually do GC fuel. But I don’t think they did the GC fuel this...
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    Time to switch oils in 2007 Subaru EJ25 turbo with 150k?

    I suppose if I get 20 answers, I’ll get 20 different opinions. But here goes: 2007 Outback XT with stock motor, (but not stock suspension) has had a steady diet of Castrol for 50k+ miles: mostly 0w30 Euro Edge A3B4, but recently a mix of 0w30 and 0w40, which are supposedly quite similar, so I...
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    Ford 3.5 EB Gen 1 UOA Quaker State Full Syn: mere 2750 mi

    Most recent UOA, chronic fuel diluter Ford Ecoboost 3.5, “winter“ OCI…to be replaced by some super-stout oil capable of withstanding 8500mi (plus / minus 1000) summer trip…something like Valvoline Premium Blue RESTORE. Actually I think the QSFS did reasonably OK, though not convinced it would be...
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    Mercon LV UOA 57k Ford Transit 250 EB with 6r80 trans

    I’m surprised at how few UOA’s there are for Mercon LV, or any ATF’s in the 6r80 ...except for one guy checking every 15k (Fusion...not 6r80), and the YouTube Amsoil guy posted by StevieC. Anyway, IMHO, this “lifetime” fluid would never make it to 150k...the official drain recommendation. This...
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    Castrol Euro at Walmart, but which one?

    Background: I have a 2007 Subaru 2.5 turbo. Once upon a time I used Mobil 1, but would sneak in some 0w40 with the requisite 5w30 until my extended 100K warranty expired. Since then I've been using Castrol Euro 3w30 (mostly the Belgium version). I was obsessed with keeping the 100C viscosity...
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    Model PDS: thanks Sinclair

    I suppose the actual data contained here will be useful to someone who can get this oil (Sinclair is more common in Northwest than here in Texas), but I'm creating this thread in the hopes that it might shame the other manufacturers into providing more useful information. This PDS is so...
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    2015 3.5EB 35k mi; 6.1k on PP 5w30

    Not what I had hoped for. This is my first UOA on this vehicle, and first with Polaris / Oil analyzers / Amsoil. Was bracing myself on iron, copper, fuel, and visc, based on other EB's, but the lead was a shocker. This was Plat pure plus 5w30, and judging from the Ca & Mg, it was D1G2...at least...
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    UOA 07 Subaru Turbo Castrol 0w30 Euro @ 4700mi ( 127k) on vehicle

    Sorry if double post....my first UOA upload attempt Note how different the 2 UOA's are (calcium, molyb, mag) though both are the "same" 0w30 BC. The earlier UOA reflects 0.25 qt of Castrol US 5w/30 added @ about 1k miles before drain. I can't believe it is responsible for such different numbers...
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