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Official UOA thread with oil poll

Discussion in 'SVT Shelby GT500' started by UnleashedBeast, Jul 25, 2011.

What oil are you currently using in your Shelby 5.4L?

Poll closed Aug 30, 2017.
  1. Motorcraft 5W-50

    35.9%
  2. Castrol 5W-50

    14.7%
  3. Pennzoil 5W-50

    0.7%
  4. Mobil 1 5W-50

    8.5%
  5. Mobil 1 15W-50

    1.1%
  6. Red Line 5W-50

    8.5%
  7. Amsoil 10W-40

    20.0%
  8. Amsoil 10W-30

    4.2%
  9. Other (post what you are using)

    6.5%
  1. Ray Lucca

    Ray Lucca Active Member Established Member

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    OK Troy, how about the next step.... You have made a compelling argument to switch to 10W/40 Full Synthetic. How about getting VOA's on the Red line, Amsoil and R/P Full Syn. 10/40 Oil....
    Hopefully someone will be switching to them and we can look at competitive UOA's after say 3-4000 miles, in process already on the Amsoil. I looked at the Red line Web-site, and they show a Spec. sheet on their Oil. Amsoil and R/P do the same?? Maybe you could evaluate each to begin??? Looks like 3 good choices....
    Edit: Maybe add the Mobil 1 EP too....
     
  2. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    Since reading your post....I went into work mode. So here is what I have come up with.

    Is it odd that Royal Purple no longer provides detailed product specifications after their line up reformulation? :??: I wasn't able to find anything other than MSDS information.

    Mobil 1 doesn't formulate a 40 grade lubricant in their Extended Performance line, but that's OK. Their mainline 0W-40 is a true synthetic, so we can use that for reference. I even suggest it to the lubricant buyers who insist to buy off the shelf.

    I do have a VOA on Amsoil 10W-40, Red Line 0W-40, and Mobil 1 0W-40, but no VOA on Red Line 10W-40. I do have product specs from Red Line's website for their 10W-40.

    Amsoil 10W-40 VOA: No moly or boron, as it uses the tried and trued method of ZDDP, and lots of it. Nice TBN as well. This stuff will retain the viscosity throughout its usable change interval. My previous sample sheared less than 1% after 4,124 miles.
    e24e1e8a.gif

    Red Line 0W-40: Heavy in moly and esters. Red Line has always been a great lubricant. Lower TBN, but higher ester content is said to make up for this. It may shear slightly, but not much. Esters are very shear resistant. This VOA shows the viscosity to be about .87 cSt higher than the spec sheets gives.
    c78d8075.png

    Mobil 1 0W-40: Low in ZDDP, but makes up for it in moly and boron. This is the direction Amsoil Signature Series lubricants are trending towards. I was expecting ZDDP levels of around 1,000-1,100. That's what Mobil 1 specs this lubricant at. This isn't the first time Blackstone measured ZDDP low, sometimes I have even seen TBN measured higher than other labs. Very nice TBN (detergent/anti-acidic additive content measurement). It's the least viscous of all three, and will shear to a mid 30 grade lubricant in the usable oil change interval.
    defb14bf.png
     
    Last edited: Sep 29, 2011
  3. Ray Lucca

    Ray Lucca Active Member Established Member

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    Great work Troy, we are on our way. I hope we can get some Royal Purple info. as I've heard they changed some product formulations and or labeling. Since R/P is readily available it will be interesting to see how their new lines stack up. Hope we also get a look at a Red Line 10/40, although I guess it should be near the 5/40 spec...Thanx!!
     
  4. evasive

    evasive Well-Known Member Premium Member Established Member

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    Here is my most recent report.

    [​IMG]
     
  5. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    Thanks a lot Evasive. The first post picture was updated to show your UOAs. All three of them were a good addition to the list.
     
  6. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    Amsoil 10W-30 UOA results are in

    UOA chart updated yet again in post #1

    I'm shocked at how fast the results are in. The sample was just sent off via UPS on Tuesday afternoon. WOW! Good job Polaris Labs. :thumbsup:

    e879c577.jpg

    Lab technicians do not think sometimes, but I can't blame them....they don't know the vehicle as well as I do, and have to test so many samples, so I decided to clarify some things.

    Really? If you would look at the three previous samples taken from this engine, you would have seen that the silicon levels are declining after every oil change. This is due to the sealants used to assemble the engine, and not dust contamination from a faulty air filter.

    How can you make that assumption without a virgin sample from the same batch? This is the normal range for PAO synthetics. :dw:

    That's because you have the virgin specs for the old Amsoil 10W-30. The new signature series 10W-30 had a big change in the additive package. ZDDP was reduced, Moly and Boron were added to compensate. If they had the new specs...Moly, Boron, and Magnesium would not be flagged, as it's native to the virgin sample. Finally I have more solid proof that Moly and Boron is a great substitute for lower levels of ZDDP.

    Manganese is flagged for a good reason. This is what happens when you use Torco. The more you use, the higher ppm this will be.

    Now that we have that out of the way....check out how beautiful the metal wear numbers are. I'm very happy with these results, and so far are the best from any sample in the list, my previous samples included. Amsoil 10W-30 is dominating the performance in my engine, and the oil pressure in my car is slightly improved over 10W-40. I can only imagine the improvement over un-sheared 5W-50. :)

    Virgin Amsoil 10W-30 viscosity is 10.5 cSt...and it remained exactly that...10.5 (zero % shearing).

    TBN is still over 8, so that means this lubricant could be used for many more miles.

    Retesting when the car is slightly over 12,000 miles.
     
    Last edited: Sep 30, 2011
  7. gr8snkbite

    gr8snkbite New Member Established Member

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    Nice update beast...looks like 10W-30 is an improvement over it's 40....
     
  8. DavidHasselhoff

    DavidHasselhoff WHYUMAD Established Member

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    Dammit Troy you made me buy the damn 10w40. :(
     
  9. Ironhand

    Ironhand Banned

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    What oil should I use.... In the transmission? lol
     
  10. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    Let's not get carried away and test it for endurance first. :beer:

    Relax...we are splitting hairs here. You still have a great lubricant. Next time, we can get your testing results from 10W-30 as well.....assuming you are running a cooler thermostat. I still want a sample of your fill of 10W-40 when you dump it though.

    Amsoil ATF
     
    Last edited: Oct 1, 2011
  11. PressurEngr

    PressurEngr New Member Established Member

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    Im thinking of using shell 5-40 synthetic T6 for the first oil change.
    Anyone use this yet?
    Ive been using this in my turbo talon and seems to work well. The talon gets beat on and sees 20psi regularly - much more abuse than the gt500 will ever get.
     
  12. DavidHasselhoff

    DavidHasselhoff WHYUMAD Established Member

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    I was jk man come on now. Ill give you your test sample, just dont be suprised when they find some semen in the oil sample :eek:
     
  13. gr8snkbite

    gr8snkbite New Member Established Member

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    I see amsoil has both standard 10W-40 and an XL version as well. Which to use? Any testing done with the XL?
     
  14. evasive

    evasive Well-Known Member Premium Member Established Member

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    I use the Premium Protection (high zinc) formula version.

    AMOQT-EA
    Product Name: SAE 10W-40 Synthetic High Performance Motor Oil
     
    Last edited: Oct 1, 2011
  15. gr8snkbite

    gr8snkbite New Member Established Member

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    Yea, that's what i was looking at getting. The XL version is cheaper and appears not to have such good properties as what you mention...if that's the case....how is it "extended life" I wonder.....DOH!
     
  16. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    Shell Rotella T6 5W-40 offers a lot of bag for the buck, gives very good UOA results, and has a tough additive package for anti-wear and detergent additives. The only things I do not like about it is....

    It's highly refined petroleum and not a true synthetic. This also means it has much higher NOACK Volatility. This is increasing oil evaporation and burn off that is accumulating inside your intake manifold.

    The formulation also has very high amounts of magnesium, and this is OK in a diesel engine. It's used as a detergent additive in place of calcium, and from what I have read isn't required or suggested for gasoline engine use...and it's not as good in a formulation as calcium.

    Since there is a lot of soot in a diesel engine, it's effective. The draw back is....Rotella T6 has a high % of NOACK Volatility. This makes it not desirable for use in a high performance gasoline engine, especially the Shelby.

    BITOG - thread where I pulled the quotes

    e64704-001.gif

    [​IMG]

    No testing so far with the XL version of 10W-40. It is a refined petroleum mixed with true synthetic. I've always required the best and didn't mind investing another $1.90 per quart for a no compromised performance. That's why I selected Amsoil AMO 10W-40 like Evasive posted about.

    They call it XL because it has a longer useable drain interval compared to the 100% refined petroleum OE formulations. It has an "xtended life" booster from the added true synthetic base stock blended in.

    Signature Series is their best formulations, but Amsoil AMO 10W-40 doesn't carry the name due to a different additive package and because it's more viscous than a 30 grade.
     
    Last edited: Oct 1, 2011
  17. gr8snkbite

    gr8snkbite New Member Established Member

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    Good to know....thanks for the info beast....got the AMO along with other goodies...just waiting for delivery day
     
  18. Dandy

    Dandy New Member Established Member

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    Unleashed, I see all the charts and funny numbers with colors, but I think for the those of us with short attention spans and less knowledge we might start needing an executive summary...
     
  19. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    Let's begin your training. Lesson #1....how to read a used oil analysis report.

    Click Here - after clicking this link...click on "gas/diesel reports".
     
  20. NuclearPower

    NuclearPower New Member Established Member

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    Just make sure that Beast remembers if you have the old cast block or the new aluminum block:poke:

    Keep posting beast. Love the info!
     

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