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Lake Speed Jr. (or whoever writes the Speediagnostix comments, I think it’s him) recommends Valvoline Restore & Protect in the UOA comments! Does that oil have the LL01 approval? It doesn’t seem so.

I don’t know much, but these two oils mostly carry the same approvals, and when you start examining the requirements there isn’t a whole lot of leeway for them to be much different in a UOA. To carry all the latest API, ILSAC, and Dexos approvals they’re both going to be almost the same...

Where do you live? If the temperature doesn’t get below 0F consistently then it is probably better to use a 5w-30. Some parts of PA can get pretty cold so if you’re in the northwest 0w might be justified especially if you park outdoors. In the East, not so much but I’m no climatologist. Even...

It seems like all the API resource conserving/ILSAC GF-6A 30 grade oils slip to the 8.8-9.3 range within a short time (<2000 miles) even when starting over 10 and with less than 1% fuel dilution at UOA. They tend to stay in the high 8's or low 9's over very high OCI's though, even out to 10k...

This was the second oil drain/change/sample with this type of oil in this unit.

Great question! I don’t know. I think it’s mostly a group III, but just guessing. I did a blackstone VOA a few months ago that indicated higher additive levels than the speediagnostix one. I don’t know if this is lab to lab variance or differences in batches, or something else.

I’m sure it will be fine. It seems to settle in right at the bottom of the Xw-30 viscosity range, ~9.3 at 100 centistokes and stay there regardless if you change at 3000 or 7000. I’m running this in 2 different 2.7L ford turbos and am going to see if I can get wear metals down to 2.5ppm/1000...

Thanks, after my warranty is over I might switch to ESP 0w30 since it doesn’t meet the ford WSS spec, even though it is probably better.

6901 miles since last oil/filter change and 20,378 total miles on this '23 Ford Brocno Outer Banks with the 2.7L V6 engine. This is this Bronco's 2nd run/3rd oil change with M1 AFE 0w-30 after running its first 5000 miles on the facotry motorcraft 5w30 syn-blend fill. Viscosity right at the...

Could be, I was using them mainly for the fuel dilution gas chromatography? Not sure if it could be something I’m doing. One issue I have in my Broncos is that it’s not so much an oil drain as it is an oil deluge so by the time I get the sample cup in the stream it’s sorta dribbling. Still...

Here are all the other UOA/VOA I have for this oil.

2024 Ford Bronco Wildtrak with 2.7L ecoboost. Was run on Mobil 1 Advanced Fuel Economy (AFE) 0w-30 and Costo 90 octane this interval. Vehicle had 3951 miles and 2 months since last oil change and 7028 miles/6 months since new. 100C Viscosity right at the minimum for Xw-30 grade but I guess...

Maybe I'll send my next sample to oil analyzers too, just for fun! Also I thought it was kind of weird that SpeeDiagnostix reported exactly 384 PPM magnesium on both the VOA and the 6500 mi UOA.

Here is the blackstone analysis taken from the same oil drain if anyone cares. I overlayed the SpeedDiagnostix values in green. Viscosity was significantly lower in the blackstone report even though I used the same sample container for both. Others have commented that the Speediagnostix...

LSJ is great and the video was cool. I hope he keeps making more, they are entertaining and informative. Plus you can ask him questions or participate in discussions on his channel in the comments without getting **** on like some other places that talk about oil. I use his oil analysis...

LOL, you think there has to be a sigmet for severe icing for it to exist? You put far too much faith in weather forecasting. What is severe icing for an ATR might only be moderate or light for a jet due to differences in wing shape. You think Air France 447, in this same general geographic...

Severe icing can happen very quickly and catch a crew not used to dealing with it off-guard. Say what you will but a turboprop with pneumatic boots can't deal with it as well as a jet with a heated wing. With that said, everyone thought Colgan 3407 was some kind of icing event but it turned...

Total vehicle mileage 13,467 miles, 6562 miles in 4 weeks on this oil, 3rd oil change since new. Filter was Fram Synthetic Endurance cartridge-type. VOA of same oil for comparison: It was at 9.2 centistokes at 100C. That’s ~ 1% below grade, but there wasn’t much fuel dilution so I guess it...

Speed Diagnostix VOA of the same oil, Mobil 1 Advanced Fuel Economy 0w30, purchased May 2024: Edited to add second picture with blackstone values pasted in for comparison. I also sent a ~6000 mile UOA of this oil from the same engine to both labs and will put comparison up in the UOA forum...

Yeah, I thought I acknowledged that in the last sentence of the second paragraph in the first post. I also know that wear metals will be higher for the first ~15k miles, just trying to calculate the total wear for the future. I do tend to write walls of text so I apologize for that. You...