Mobil 1 - 2X better Turbo Protection

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buster

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The motor oil industry uses the Honda Hot Tube test, which is a proprietary Honda high-temperature deposit test that measures an oil’s resistance to deposit formation in turbochargers. In the severe-service test with turbochargers, Mobil 1™ 5w30 advanced full synthetic oil displayed superior protection compared to a competitive full synthetic oil as well as our own conventional oil (which met industry-standard GF-5/API SN requirements).
 
Thanks!
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I love marketing. Really curious who the competing full synthetic is. I believe Mobil1 is a good choice, but have a hard time swallowing that it's 2x better (regarding deposits) than Valvoline or PP / PUP.
 
Many syn 5w30s now meet Honda's HT-06 standard. Including Pennzoil. maybe back when that was written they were one of the first, as I'm pretty sure the acura RDX turbo (for which HT06 was established) recommended mobil 1 and listed it on the oil cap.
 
My mom has an 07 RDX and factory fill was M1. After that initial fill our RDX has been on a Pennzoil Platinum 5w30 diet. With it now at 160K with 0 motor/turbo failures, clean motor (from what I can see under the cap) I'd say PP has done just as well.
 
The Honda tube test evaluates used oil whereas the TEOST is testing new oil.
 
Two things I've noticed, which I'm guessing many be related.

First Mobil is often claiming and posting test results about how their M1 oil is very clean and low in deposits compared to other oils, including other synthetics.

Second in the used oil analysis (UOA) section here on BITOG you often see other oils like Magnatec, Edge, PP stay in viscosity grade at the end of an oil change interval (OCI) yet the M1 under similar conditions often shears a lot more and can often fall out of it's viscosity grade.

I think this might be opposite sides of the same coin and all to do with the polymer viscosity index improvers (VII) used in the various oils. I'm happy for an oil formulator to come and correct me here, but I think burnt VII is a major source of deposits, and shearing VII is a major source of viscosity loss.

Also if you use a high shear stable VII, with it's lower viscosity loss, it's usually not very efficient and therefore more VII is required and their is more potential for deposit formation. On the otherhand, a very efficient VII only requires a small dose and has low deposit potential, but it's much easier to shear and have the oil fall out of viscosity grade.

All oils are a comprise and all oil companies market to their strengths and avoid talking about their weakness. I buy on an oil matching my application if I need something special. Otherwise for my regular family car, I buy on price but sticking to the name brands, all of which I trust to develop a well balanced package.
 
Originally Posted By: Quattro Pete
Do any new cars actually call for an oil meeting the HTO-06 spec?

Honda seems to have moved away from it.


IDK, but they're now putting turbos in everything seemingly (Honda) and some 0W-20 synthetics now carry the HTO-06 spec...

Upon further review, not so much...
smile.gif
 
Originally Posted By: SR5
Two things I've noticed, which I'm guessing many be related.

First Mobil is often claiming and posting test results about how their M1 oil is very clean and low in deposits compared to other oils, including other synthetics.

Second in the used oil analysis (UOA) section here on BITOG you often see other oils like Magnatec, Edge, PP stay in viscosity grade at the end of an oil change interval (OCI) yet the M1 under similar conditions often shears a lot more and can often fall out of it's viscosity grade.

I think this might be opposite sides of the same coin and all to do with the polymer viscosity index improvers (VII) used in the various oils. I'm happy for an oil formulator to come and correct me here, but I think burnt VII is a major source of deposits, and shearing VII is a major source of viscosity loss.

Also if you use a high shear stable VII, with it's lower viscosity loss, it's usually not very efficient and therefore more VII is required and their is more potential for deposit formation. On the otherhand, a very efficient VII only requires a small dose and has low deposit potential, but it's much easier to shear and have the oil fall out of viscosity grade.

All oils are a comprise and all oil companies market to their strengths and avoid talking about their weakness. I buy on an oil matching my application if I need something special. Otherwise for my regular family car, I buy on price but sticking to the name brands, all of which I trust to develop a well balanced package.


Is the Mobil 1 10w30 one that goes out of grade? If you don't know ill go dig through all the UOA threads
 
Originally Posted By: SilverFusion2010

Is the Mobil 1 10w30 one that goes out of grade? If you don't know ill go dig through all the UOA threads


From memory it was the regular M1 5W30 that sheared out of grade in then UOA section, the 10W30 should have less VII in it and therefore should be more shear stable.
 
I also understand M1 0w40 to shear as well, though also over the 5k mile OCIs people report it seems to "thicken back a bit", though I'm not sure if that's really what is happening.
 
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