Here's a virgin sample of High Performance Lubricants PCMO 10W-20. Starting TBN is 13.0. It has a good bit of moly and lots of magnesium. The aluminum is from the add pack.
High Performance Lubricants PCMO 10W-20 VOA
- Thread starter RDY4WAR
- Start date
D
Deleted member 89374
Most likely from the metal deactivator chemistry or catalyst byproduct. Anyway, it's nothing to be concerned about if anyone's wondering.
Well it doesn’t meet the cold cranking and pumpability requirements for a 0W rated oil otherwise it would be labeled as such.
I'm inclined to believe that the 0w20 is incredibly stable as well unless we want to split hairs.
This oil is a straight viscosity base oil with no VII.
Don't use pour point as a determining factor for cold weather startup. The CCS and MRV is what you want to pay attention to.
Don't use pour point as a determining factor for cold weather startup. The CCS and MRV is what you want to pay attention to.
D
Deleted member 89374
I run the HPL Premium Plus PCMO 0W-20 in my wife's Jeep (V6). It uses star polymer as VII, so it is very, very shear stable. It's blended with PAO as the majority base oil.
Basically, it's like a monograde SAE20.
From the various discussions over the years, there are pros/cons to using star vs. OCP depending on the application.
D
Deleted member 89374
I thought the star polymers were about 10% better than OCP. Can you please tell me what the pros and cons are between the two? Thank you.
Shell Rotella Gas Truck 5W-30 vs. Shell Rotella T6 Multi-Vehicle 5W-30 compared
Originally Posted by RDY4WARAs a note, Shell's star polymers are also pretty rock solid when it comes to shear stability. I wouldn't worry about RTG holding its grade. Star polymers?? They are not used these days because of their deposit-forming tendencies. Oils cannot pass the turbocharger...
bobistheoilguy.com
Synthetic Oils With Lowest VII's ?
A few years ago, I asked some questions about VII here on BITOG, and was lucky to get some oil formulators answer me. I'll copy and paste below, for those interested. Quote Question - SR5: Just say we have three 40 weight oils from the same name brand manufacturer. The first is a top shelf...
bobistheoilguy.com
Synthetic Oils With Lowest VII's ?
A few years ago, I asked some questions about VII here on BITOG, and was lucky to get some oil formulators answer me. I'll copy and paste below, for those interested. Quote Question - SR5: Just say we have three 40 weight oils from the same name brand manufacturer. The first is a top shelf...
bobistheoilguy.com
D
Deleted member 89374
Thank you @The Critic, now I got some reading to do. I believe that HPL knows what it's doing when it comes to using star polymers in their top-of-the-line Premium Plus PCMO though.
Where would you use this wgt oil?
Where geographically? I would say south of the Mason-Dixon line is probably safe to use 10W-xx year around. A 10W-xx oil must be <7,000 cP dynamic viscosity @ -25°C (-14°F) so you're good to go down to that temperature. I prefer to go to a 5W-xx or 0W-xx oil anytime below ~0°F though, just to give a buffer.
@High Performance Lubricants , do you have a30wt oil that has no VII? Maybe your SAE 30?
We do. Our straight 30 measures as a 15w30.
David
David
Engine Oil Components Effects on Turbocharger Protection and the Relevance of the TEOST 33C Test for Gasoline Turbocharger Deposit Protection - Document - Gale Academic OneFile
<em>Gale</em> Academic OneFile includes Engine Oil Components Effects on Turbocharger Protectio by Kongsheng Yang, Kristin A. Fletcher, Je. Click to explore.
go.gale.com
I dropped in Figure 2 because it's misplaced in the document itself. This is but one report from a long time ago (2017) but IMO it's a good read due to the proliferation of TGDI engines.
"
RESULTS AND DISCUSSION
GMTC Test Responses
Viscosity Modifier Type Impact
It is generally understood that viscosity modifier polymer loading has a negative impact on deposit tests. To evaluate whether polymer type has an impact on the formation of turbocharger deposits in the GMTC test, Oil A with a high-level shear stable star-type polymer viscosity modifier was compared to Oil B with a mid-level shear stable olefin copolymer viscosity modifier. Figure 2 illustrates the percent TCO Temp increase of Oil A and Oil B. Temperature increase in the TCO housing occurs when deposits form, causing an insulating effect and reducing oil flow. It is typical to observe very little change in percent TCO Temp increase within the first 1200 cycles or more because protection is maintained by the additive system. Once deposits begin to accumulate, heat transfer efficiency is reduced and oil flow through the passage becomes restricted. TCO Temp increase percentages of Oil B were almost flat until end of test while those of Oil A began increasing around 1700 cycles until end of test. Both oils passed the GMTC test as measured by percent TCO Temp increase at 1800 cycles; however, Oil B appeared to maintain performance beyond the point at which Oil A began to degrade.
To further evaluate the performance of Oil A and Oil B in the GMTC test, the average turbocharger deposit merit ratings at end of test were compared. Average deposit merit rating is the average of the ratings of six areas (see Figure 1) where high temperatures are encountered and a majority of deposits form. The average merit rating of Oil B at end of test was 8.8 merits, which is one unit higher (better) than that of Oil A with 7.8 merits (Figure 3). The difference in end of test average merit rating indicates that the olefin copolymer viscosity modifier performed directionally better than the star-type polymer in the GMTC test.
Performance difference between the olefin copolymer viscosity modifier and the star-type viscosity modifier may be due to a difference in shear stability and/or chemical structure (backbone, bond saturation, and oxidation stability). The total acid number (TAN) (ASTM D-664) and oxidation level (DIN 51453) of selected new oil and used oil samples for Oil A and Oil B from the GMTC tests are listed in Table 2. Both TAN and oxidation data support that Oil A has greater tendency to form acid (e.g., polymeric acid) and exhibits lower oxidation stability, which facilitate deposit formation."
Thanks! Might work well in my mazda!
Only if you can buy it, can’t find the 10w20 anywhere on either sight, looks like $15 a quart
Passenger Car Engine Oil
High Performance Lubricants’ passenger car engine oil is a multi-synthetic high performance motor oil made with the best choices of additive chemistry. Oils formulated with specifically chosen esters can help to minimize intake valve deposits, maintain clean engines and provide elastomer...
www.advlubrication.com
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