I never realized that. Good to know and thanks for sharing.BS does not use industry standard vis parameters in their reports. Instead they use a "should be" range factor; they show the tested value and then report it against their historically expected value.
The Amsoil Euro 0w-30 has an HTHS vis of 3.5, & meets API SP as well. Less detergent to compete with the ZDDP for better wear rates.Mobil 1 Advanced Fuel Economy 0W-30 (owners manual/Ford WSS-M2C963-A1 spec compliant):
(yes, flame suit on for using blackstone....I'm new here)
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Obviously it's blackstone analysis of M1 AFE 0W-30 at 2578 miles on a 2.7L ecoboost in a Ford Bronco, 3000 miles total on the engine (did a 500 mile first change to get rid of the factory fill).
It appears that it sheared or diluted out of viscosity grade after only 2500 miles! I think xxW-30 oil is suppposed to stay between 9.3-12.5 centistokes at 100C according to chart SAE J300 even though Blackstone says 8.8-11..9?
Pending blackstone getting around to it (took about 5 weeks to get this one), I also have a virgin/unused M1 AFE 0w-30 analysis and a 6000 mile analysis from my other bronco, with the same model of engine. I'm bracing myself for that result to be below 8 centistokes.
Furthermore I've researched (apologies for being new to UOA) that Blackstone's fuel dilution numbers may not be accurate. As a result, I also sent the 6000 mile sample to Speed Diagnostix who do the gas chormatogrpahy analysis for more accurate fuel dilution results. It will be interesting to compare the two fuel dilution numbers from the same sample. No offense to Blackstone intended, I'm sure they're fine folks and I had some of their sample kits on-hand, which is why I used them here. If the results of the Speed Diagnostix GC fuel dilution numbers match Blackstone's estimates, I will state such.
I am in a cold climate, which is why I'm using the 0W-30. This and the Amalie 0W-30 are the only two 0w-30 oils I've found that comply with Ford WSS-M2C963-A1 spec. Even so, this result has me contemplating a different oil and maybe a switch to a 5W-30 (the manual's recommended "normal" climate grade) in summer since I usually do an oil change at summer/winter tire changeover anyway. I rarely see the oil temp on the gauge cluster over 200F and ambient temps never get much over 70F so I'm not sure what I should do. Maybe I will try a botique oil like the HPL 0W-30 or Amsoil SIgnature 0W-30 to combat the possible fuel dilution issue.
Is it also possible that Ford accounted for the fuel dilution when making the specs for the ecoboost, and bumped up the recommended viscosicty grade to account for it?
I might try Mobil 1 ESP 0w-30 even though M1 doesn't advertise it as meeting spec WSS-M2C963-A1. After BITOG research, I believe these specifications have become a pay-to-play scheme by the Automakers which have also incorporated some "cost of ownership" and/or enviro-efficiency requirements which may not 100% align with the owner's desire for engine longevity and performance.
Hope you remember to post the results! You do know that the higher priced SD test includes particle count, right? I don't think that's mentioned on the website, I emailed Lake he confirmed. They only recently got the particle count machine in September, I think?I've learned the error of my ways and accept that I am ignorant slob when it comes to Statistics, Chemisty & Science, amongst other things. I understand that the only thing the $30 ($50?) spectrographic analyses can tell me is a rough idea of the amount of wear the engine is experiencing in this one particular application of my daily driving which entails a lot of uncontrolled variables that make it unsuitable for accurate scientific analysis. One thing that could change my oil choice is if I get a lot of fuel dilution in my next report, due to Winter time conditions, which for me entail a lot of idling and short trips. Both of these engines have had less than 1% dilution for me so far according to Speediagnostix, including a few winter OCI's.
When I made this thread it was the first change with the M1 AFE and it was likely still diluted with a significant amount of the factory fill Motorcraft 5w-30. I didn't know that when I made the thread. I'll keep posting M1 AFE UOA's though, for my next one I sent a 4000 mile sample to both Oil Analyzers and Speediagnostix to compare lab to lab results, just for fun. For the UOA after that, I took a VOA sample from the jug as I was filling the engine and sent it to both OA and SD. I think it will be interesting to compare the VOA to the UOA that came out of the same jug, even though I understand the spectrographic analysis can only give a partial & inaccurate picture of the oil's chemical makeup and physical properties.
Hope you remember to post the results! You do know that the higher priced SD test includes particle count, right? I don't think that's mentioned on the website, I emailed Lake he confirmed. They only recently got the particle count machine in September, I think?
I've learned the error of my ways and accept that I am ignorant slob when it comes to Statistics, Chemisty & Science, amongst other things. I understand that the only thing the $30 ($50?) spectrographic analyses can tell me is a rough idea of the amount of wear the engine is experiencing in this one particular application of my daily driving which entails a lot of uncontrolled variables that make it unsuitable for accurate scientific analysis. One thing that could change my oil choice is if I get a lot of fuel dilution in my next report, due to Winter time conditions, which for me entail a lot of idling and short trips. Both of these engines have had less than 1% dilution for me so far according to Speediagnostix, including a few winter OCI's.
When I made this thread it was the first change with the M1 AFE and it was likely still diluted with a significant amount of the factory fill Motorcraft 5w-30. I didn't know that when I made the thread. I'll keep posting M1 AFE UOA's though, for my next one I sent a 4000 mile sample to both Oil Analyzers and Speediagnostix to compare lab to lab results, just for fun. For the UOA after that, I took a VOA sample from the jug as I was filling the engine and sent it to both OA and SD. I think it will be interesting to compare the VOA to the UOA that came out of the same jug, even though I understand the spectrographic analysis can only give a partial & inaccurate picture of the oil's chemical makeup and physical properties.
There is a great deal of imagination on here when it comes to $30 spectrographic analyses as to what they show and do not show.The accuracy of the analysis will vary based on when and how the machine(s) was calibrated. All labs run QC based on a known standard and there is an acceptable deviation from that based on the analytical method.
Wear rates have value if you are doing regular analysis and looking for trends, however oil analysis is really for determining the life and health of the lubricant. Large particles of metal will not be seen under spectrographic analysis.
The quantity of left over oil is really dependent on the engine design. Some engines can be nearly completely drained during an oil change, while others can hold over a quart of oil left in the filter housing and sump. As a guideline, if it uses a cartridge style filter, it should be removed first so that the housing can drain. An extractor can also to suck out any oil from any accessible area that has poor drainage.
Based on what you've posted no one can give you that answer because no one can tell if the lower viscosity was due to fuel dilution or sheer or both.
Considering it's a GDI Ecoboost, in the winter, can't we say that it's very likely it's going to mostly be attributed to fuel dilution.