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Yes, I’ve seen the Lubrizol tool, but I’m not sure I know how to use it appropriately. I’ve heard it is misused as often as appropriately used. This has probably been hashed over repeatedly. it might be the perfect tool for dummies…and potentially only dummies…or those who understand it’s...

So, let me ask: 1) is there any reason to use a C3 (or any Cx) oil in this turbo Subaru vs an A3/B4 oil? however, I’m convinced (rightly or wrongly) that A3/B4 oils are better for it than A1/B1 or A5/B5, or ILSAC-only oils. 2) is there any reason to use a C3 (or any Cx) oil in my gen1 Ford 3.5...

Well, maybe I’m wrong about “Euro Car” being SP & C3. Wrong again. Though apparently there is an C3 version. Again, so many flavors.

Well, I learned something…that they had these canned options, if you can submit electronically, and that their website doesn’t like iPads…or maybe it’s finicky for everyone. This is a laudable effort, but probably futile. Oil co’s are bringing out new “models” faster than anyone can keep up...

Whoops sorry, double post. Moderator, can you remove? Apparently, this created 2 threads. My bad. @dnewton3

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...

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...

Just piling on, but “Fully synthetic blend media” is a prime example of “word salad.” Next we’ll have 100% synthetic blend. Whiskey Tango Foxtrot.

I remember all the bragging by Sprinter T1N owners that their vans got over 20 mpg diesel. For instance: https://www.fuelly.com/car/mercedes-benz/sprinter/2004 of course these weren’t necessarily “RV’s.” Regardless, it coincides with the “physics laws” alluded to above. If you can cram your...

Thanks Bella. I failed to mention, the paper book at Wally’s showing filter recommendations for the Subaru showed Fram xx6607…no distinction for Turbo vs non-Turbo, but with an asterisk…XG- or TG-9517 if previously indicated (or something like that???). IIRC I think the -9517 had a more correct...

I saw the boxed “Subaru“ oil filter today at Wally’s. Opened the box, and inside was a shrinkwrapped blue 15208aa150 filter looking all normal and genuine. Since I need a “…12a” filter, I closed the box back up and didn’t bother to notice the price. Next stop was the local dealer. I had called...

Hmmm, I was wondering if Oil Analysers is gaslighting us with high fuel numbers. Maybe they are always 0.3 high, though I was concerned they were reading considerably higher than 0.3. No proof, maybe just wishing, since I’m often disappointed 😩😥 in the fuel readings I’ve gotten from them.

Hey, it takes time to make up such BS.

I appreciate you chiming in, gives me a bit of a comfort feeling and perspective about EJ25x’s.

If someone were going to mix, I believe mixing Castrol Euro 0w30 with Castrol Euro 0w40 is the most copacetic mix possible. I have no proof, no Tribologist insight, but they really are “kissing cousins.” Also without proof or inside information, I believe the 0w30 is plenty thick for my...

Maybe your point was 0w30 vs 0w40…meh, what’s the difference? But I like the lower KV100 of the 0w30, and related lower kv40. Still, other than CST, they performed pretty much the same…and I’m hoping my current mix of the two would also be in the same ballpark. but I thought since I was now all...

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So this prompted me to look at Castrol’s PDS pages. it now appears to me that the 5w30 A3B4 has been available much longer than I thought (PDS dated 2014?). Also, the 0w-40 A3B4 appears to have been replaced by a 0w-40 PA (Which is still A3B4, and still only SN As of late 2022). will the new...

I’m a bit of a thickie, but only moderately so. The Castrol Euro Edge 0w30 (son or grandson of “German Castrol”) hit my sweet spot: 12.1cst, HTHS 3.5. a more modern version may be the ticket. There is a newer Castrol Euro Edge 5w30 which might do, but I thought some of the euro crowd ( like...

Headslap. Duh. Owners Manual never occurred to me. OM: 5w30 SM “preferred.”. Also 10w30 and 10w40 if over 0 Fahrenheit. GL4. I never noticed severe duty section before: 30, 40, 10w50, 20w40, 20w50…SM or SL. Phew, the SL I’ve been using is OK, though no mention of 0w30, 0w40, or 5w40. also no...