Valvoline Restore and Protect

I read a comment by an oil distributor a few days ago that thinks the ring cleaning ability comes from the base oil technology rather than an additive. They also said that the 5W-30 Noack was tested to be close to 15% and couldn’t quality for Dexos even if they wanted to pay for it/disclose the formula, but that the level of solvency needed to break down the deposits resulted in a somewhat volatile formulation.

Probably gonna get some laugh emojis out of that but I thought it was an interesting theory.
It's not a solvent. It's a dispersant and it works on a molecular level—it attracts and withhold sludge and varnish within the oil itself. I don't think that has anything to do with oil's volatility or Noack.

If you look at the PDS on the Vslvoline Global website, most of their oils says that have Noack <15%—hence less than 15% but unknown.
They show the actual Noack on a few mostly thick oils like the VR1 series.
 
It's not a solvent. It's a dispersant and it works on a molecular level—it attracts and withhold sludge and varnish within the oil itself. I don't think that has anything to do with oil's volatility or Noack.

If you look at the PDS on the Vslvoline Global website, most of their oils says that have Noack <15%—hence less than 15% but unknown.
They show the actual Noack on a few mostly thick oils like the VR1 series.
That NOACK number seems high for an oil that is supposed to help with oil consumption after cleaning rings .
 
That NOACK number seems high for an oil that is supposed to help with oil consumption after cleaning rings .
I'll contact Valvoline and will let you know the exact Noack % of the Valvoline Restore and Protect. I believe it's about 10% but that info came out of AI.
I honestly don't care because the oil does its job and also shows excellent results on the UOA reports.
 
Update: 205,000 miles on the 2014 Jeep Wrangler 3.6 and 4,000 miles on the 4th fill of Valvoline Restore and Protect 5w-30. Zero oil consumption plus the oil is not very dark. Fuel economy increased, too. I suspect the piston rings are sealing better than before and the VVT system may be functioning better, too. The mechanical change prior to this oil change was changing the original PCV with a new OEM unit. After 200,000 miles the original was most likely not working as intended and the new PCV is contributing to reduced oil consumption in addition to Valvoline Restore and Protect.
 
I'll contact Valvoline and will let you know the exact Noack % of the Valvoline Restore and Protect. I believe it's about 10% but that info came out of AI.
I honestly don't care because the oil does its job and also shows excellent results on the UOA reports.
They probably won’t have that information available for you. I’d be surprised if they give that out anymore
 
It's not a solvent. It's a dispersant and it works on a molecular level—it attracts and withhold sludge and varnish within the oil itself. I don't think that has anything to do with oil's volatility or Noack.
I know Hohn's theory is that it's a dispersant, and that's a reasonable theory, but we do not KNOW that it's a dispersant. We do know that it was a chemical found to have this effect; to be able to break-down and remove varnish/lacquer incidentally, which points more toward it being an additive package component rather than a base oil.

It could be a dispersant or detergent, it could be an FM or AW additive, we really don't know. What we do know is that this function was not the intention.
 
That NOACK number seems high for an oil that is supposed to help with oil consumption after cleaning rings
It's Noack. It's not capitalized. It's named after the guy who designed the test. (Even AMSOIL gets it wrong! @Pablo I'm surprised you haven't straightened them out yet.)

We don't know what it is really. They just say it's below 15%.
 
That NOACK number seems high for an oil that is supposed to help with oil consumption after cleaning rings .
And yet, many report consumption down or gone after cleaning up the rings. 🤷‍♂️

I think this underscores the issue with Noack. It’s a test that isn’t necessarily reflective of real world conditions. Good test and indicates volatility at a whopping 482 degrees Fahrenheit, but at what point are Noack results “good enough” because engine oils don’t typically reach that temp.

https://www.lubesngreases.com/magazine/23_7/japan-pulls-ahead-of-the-viscosity-pack/

“In regards to volatility-a particularly important parameter for lower viscosity oils-the authors of SAE Technical Paper 2011-01-1247 showed that a thermogravimetric analysis volatility test method reported at 180 C showed good correlation with oil consumption. The widely used Noack volatility test (ASTM D5800), reported at 250 C, didnt correlate with engine oil consumption in a low friction engine.”
 
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And yet, many report consumption down or gone after cleaning up the rings. 🤷‍♂️

I think this underscores the issue with Noack. It’s a test that isn’t necessarily reflective of real world conditions. Good test and indicates volatility at a whopping 482 degrees Fahrenheit, but at what point are Noack results “good enough” because engine oils don’t typically reach that temp.
The bottom of the piston crown and ring pack can run pretty hot. If an oil is going to vaporize from heat it would be there. Engines with piston oil squirters most likely help kept the temperature down in that area and therefore help reduce vaporization and ring deposits by keeping surfaces cooler.
 
The bottom of the piston crown and ring pack can run pretty hot. If an oil is going to vaporize from heat it would be there. Engines with piston oil squirters most likely help kept the temperature down in that area and therefore help reduce vaporization and ring deposits by keeping surfaces cooler.
That’s true. I suppose it’s more of an issue with high volatility oils creating deposits in the first place, but not every engine will suddenly begin using oil just because the Noack test is on the higher end of the “passing” grade. Engines more prone to deposits? Sure. But regardless of the actual test result for Noack for Valvoline Restore and Protect, it clearly isn’t causing consumption itself. If it were, those engines getting a reduction or elimination of previous oil use would still use some, I would think. But I’m sure there is more nuance here I could be missing or specific use cases.
 
The bottom of the piston crown and ring pack can run pretty hot. If an oil is going to vaporize from heat it would be there. Engines with piston oil squirters most likely help kept the temperature down in that area and therefore help reduce vaporization and ring deposits by keeping surfaces cooler.
I think way back when Dr Noack toyed with this - engines were allowed to release vapors - much different than today’s pollution controlled systems …
 
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