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That's a typo it should have read 0W40. At least that's what it says on the dealer invoice. Mobil One does have a 10W30, but I don't know how that got on the Blackstone report unless I mistyped it. But, honestly, I could give a **** about what oil it had. I'm happy with the results.
Thanks for sharing this report, but you're not going to like my comments about it.
Ignore the verbiage from Blackstone and look at the numbers. This oil was run too long. You have double digit wear metals, you have viscosity numbers that are too thin and out of the range. In the extra 1,400 miles you ran this oil vs the last change, your wear metals for Iron & Copper more than doubled and tripled. Do you know where Iron and Copper in these motors are - it's the main bearings deep inside the case. This oil change protocol is wearing your crankshaft main bearings.
This report is a perfect example to show how longer change intervals show the anti-wear additive package in the oil breaking down further and further - lower Zinc & Phosphorous each time you ran the oil more miles, and lower viscosity the more miles you ran the oil. In this report, your oil is no longer adequately protecting your engine. I'm not sure why each oil change has more and more miles on it - if your "goal" they mention is to get to a 10,000 mile oil change interval, it's a terrible goal - you're robbing Peter to pay Paul, and you'd rather be paying Peter. Peter is the $100 cost of doing a 5,000 mile oil change with the inexpensive Mobil 1 oil you're using, and Paul is the $20,000 cost of replacing your motor.
If you pay the extra $10 for a TAN and TBN analysis you would also see that the oil in these last samples has a TAN number much greater than the TBN number, which means the oil has become acidiic. Acidity eats metal parts.
Here is another UOA. XP-9 used for tracking. 611 total miles. 360 were highway to and from track. Silicone levels I attribute to the new oil pan sealant.
Here is another UOA. XP-9 used for tracking. 611 total miles. 360 were highway to and from track. Silicone levels I attribute to the new oil pan sealant.
I see Silicon (Si) not silicone. Is there any Silicon in seals?
I see Silicon (Si) not silicone. Is there any Silicon in seals?
Gasket sealant or what's sometimes referred to as sllicone has high silicon content and if an oil pan or something similar was recently resealed, it will throw a high silicon number similar to what dirt entering the intake will do. In my experience it's only there for 1 oil change and then the next one will be back to normal. I've done this twice now and had a high silicon reading both times, then not again with no other changes.
Sample from base 09 997.2
Added the previous analysis from SpeeDiagnostix to column for comparison. They do a FTIR Analysis to determine oil health rather than the TBN. Sent email asking for an explanation of the FTIR but never heard back. Kinda pricey at $60 a pop.
The fuel % drop is from changing out the plugs. Any feedback is appreciated.
Sample from base 09 997.2
Added the previous analysis from SpeeDiagnostix to column for comparison. They do a FTIR Analysis to determine oil health rather than the TBN. Sent email asking for an explanation of the FTIR but never heard back. Kinda pricey at $60 a pop.
The fuel % drop is from changing out the plugs. Any feedback is appreciated.
It's telling that Driven oil has Moly... LiquiMoly MoS2 can be added to any oil.
Sample from base 09 997.2
Added the previous analysis from SpeeDiagnostix to column for comparison. They do a FTIR Analysis to determine oil health rather than the TBN. Sent email asking for an explanation of the FTIR but never heard back. Kinda pricey at $60 a pop.
The fuel % drop is from changing out the plugs. Any feedback is appreciated.
I would move to a 5,000 mile interval. There are a out 10 points shared between a TAN and TBN. You want the oil to not be acidic so the TBN should be a higher number than the TAN. If your TBN number is 1.4 that means your TAN is likely somewhere around 7 or 8 making the oil much more acidic than basic. In the next sample, pay the extra $10 to have Blackstone run the TBN so you can compare the two, then adjust the mileage change interval to a place where the TBN exceeds the TAN.
Good question. The only change was adding MoS2 (one pint which is a bit under the recommended add quantity for a 7.5 quart fill).
Edit: Others on this Forum have noted shearing problems with Mobil One oil and I suspect this is the case. But I am a bit surprised that Blackstone didn't call it out as such. How much lower a viscosity are you going to get from 0-40?
I've used the same oil for my last 20 changes. I have just recently started adding the MoS2.
I didn’t read the whole thread, but just went through something similar with MoS2. Charles Navarro told me it does decrease viscosity and often leads to knocking/ticking. I’m ashamed I tried Liquimoly and MoS2, albeit for only 3k miles. I should’ve done better research. I dropped my oil pan to check, thankfully no metal.
This was when my motor had a scored cylinder so that’s why wear metals are terrible...... it had Castrol cause it was eating 1 qt every 500 ish miles and Walmart had it cheap.
but I was running MoS2 at the time and all is well with viscosity. This is at the recommended spec on the MoS2 bottle. I would run MoS2 in all my cars (and do) unless I was running a oil high in moly, such as DT40. The problem with DT 40 is the formula switched to include high moly at some point and I am always gun shy to order from random vendors cause you don’t know what you are getting. You can see the old formula and new formula difference comparing oil analysis in this thread. Motul xcess is a great oil and A40 approved, I run that and MoS2 and recommend it to all Owners that I know.
my car had been on Mobil 1 (no MoS2) its whole life with dealer changes and scored a cylinder.
mos2 has been studied by multiple institutions and the stuff works including NASA. There is no argument that doesn’t.
This was when my motor had a scored cylinder so that’s why wear metals are terrible...... it had Castrol cause it was eating 1 qt every 500 ish miles and Walmart had it cheap.
but I was running MoS2 at the time and all is well with viscosity. This is at the recommended spec on the MoS2 bottle. I would run MoS2 in all my cars (and do) unless I was running a oil high in moly, such as DT40. The problem with DT 40 is the formula switched to include high moly at some point and I am always gun shy to order from random vendors cause you don’t know what you are getting. You can see the old formula and new formula difference comparing oil analysis in this thread. Motul xcess is a great oil and A40 approved, I run that and MoS2 and recommend it to all Owners that I know.
my car had been on Mobil 1 (no MoS2) its whole life with dealer changes and scored a cylinder.
mos2 has been studied by multiple institutions and the stuff works including NASA. There is no argument that doesn’t.
The Motul samples in the spreadsheet in post #4 have some of the highest wear metal and lowest viscosity numbers of all the spreadsheet entries. I used to use it but switched to DT40 and get better UOA results with it than I did with the Motul. I don't care about A40 approval as my car is way outside of warranty.
05-02-2020, 06:14 PM
