mobil 1 synthetic vs toyota OEM oil

[xyzzy]

It seems the API S# designation doesn’t necessarily mean the oil formulation changed, it means that the oil meets the relevant API testing requirements. The Toyota SN oil could be the same formulation as the SN Plus oil.
It will be interesting to see if any SN PLUS test results are posted before they test the SP version.

[MENTION=167491]83Mule[/MENTION] - Not obsessing, just pointing out how to find actual data for differences between oils when a question like the OP asked is asked. Toyota merely recommends TGMO or equivalent ILSAC GF-5 0W-20 (except for Puerto Rico).
[MENTION=200736]ElectroBoy[/MENTION] - Correct, and also vice versa. A post on the BITOG forum from Aug 2020:

"There is a four-digit formulation number (revision number) on the back label of all ExxonMobil oils. By looking at this number, you can tell what the formulation is.

The original TGMO 0W-20 SN had RN5953. It was Group-III-based and looked liked it had a lot of polyol ester (POE) if my FTIR oxidation number was correct. It also used trinuclear moly.

Years later PQIA tested a TGMO 0W-20 SN that had RN6378. It was GTL-based with a very high amount of 787 ppm sulfurless Molyvan 855 moly. It also likely had some POE according to Russian FTIR data, but it was only a few percent if at all. TGMO seems to like to have ester.

The SN PLUS version you posted also has RN6378; therefore, the formulation hasn't changed for the last two years or so. You can see the PQIA VOA of this formulation here. Note that the PQIA version is labeled SN but it is the same RN6378 formulation.

Now, someone needs to find the SP bottle so that we can see if the SP formulation is different."

BITOG == Bob is the oil guy / bobistheoilguy.com
FTIR == Fourier Transform Infrared Spectroscopy (one of many ways to analyze lubricants)
PQIA == Petroleum Quality Institute of America
TGMO == Toyota Genuine Motor Oil
VOA == Virgin Oil Analysis

 

[Jivewalker]

I've tried most of the mainstream oils over the last 208,000 miles and came back around to toyota OEM which the local dealer sells to me for the same price as M1 at wall mart.

I have noticed the engine stays quieter longer with Toyota oil. Every time i pull into my garage I always listen to my engine for a few seconds before shutting down. Been doing this for 8 years now and I can usually hear when something sounds different like when the ticking gets louder. I also change it every 5-6k despite the 10k recommendation. Run OEM filters and still have the plastic housing and a cheap pennzoil filter wrench with no issues so far.

 

[ElectroBoy]

[MENTION=167491]83Mule[/MENTION] - Not obsessing, just pointing out how to find actual data for differences between oils when a question like the OP asked is asked. Toyota merely recommends TGMO or equivalent ILSAC GF-5 0W-20 (except for Puerto Rico).

[MENTION=200736]ElectroBoy[/MENTION] - Correct, and also vice versa. A post on the BITOG forum from Aug 2020:

"There is a four-digit formulation number (revision number) on the back label of all ExxonMobil oils. By looking at this number, you can tell what the formulation is.

The original TGMO 0W-20 SN had RN5953. It was Group-III-based and looked liked it had a lot of polyol ester (POE) if my FTIR oxidation number was correct. It also used trinuclear moly.

Years later PQIA tested a TGMO 0W-20 SN that had RN6378. It was GTL-based with a very high amount of 787 ppm sulfurless Molyvan 855 moly. It also likely had some POE according to Russian FTIR data, but it was only a few percent if at all. TGMO seems to like to have ester.

The SN PLUS version you posted also has RN6378; therefore, the formulation hasn't changed for the last two years or so. You can see the PQIA VOA of this formulation here. Note that the PQIA version is labeled SN but it is the same RN6378 formulation.

Now, someone needs to find the SP bottle so that we can see if the SP formulation is different."

BITOG == Bob is the oil guy / bobistheoilguy.com
FTIR == Fourier Transform Infrared Spectroscopy (one of many ways to analyze lubricants)
PQIA == Petroleum Quality Institute of America
TGMO == Toyota Genuine Motor Oil
VOA == Virgin Oil Analysis

In that post on BITOG:
Toyota Genuine Motor Oil - old -vs new (latest) | Bob Is The Oil Guy

Later in the thread someone pulls up a bottle of API SN 0W-16 and it also has an RN6378, same as the 0W-20. Hmmmm... Kind of makes me doubt that the RN number indicates a formulation identifier. The author’s explanation wasn’t entirely convincing.

But in any case, PQIA reports that analyzing some reports of oil manufacturers formulation of the SN PLUS oils showed they typically reduced calcium and increased magnesium. If you look at the numbers they describe, they approach the Toyota numbers for these two elements. Maybe the Toyota SN formulation already hit the sweet spot to meet SN PLUS.

 

[dedonderosa]

i know multiple people running 5w30 or 0w30 in their 1grfe with 0 issues and significantly quieter.

 

[Gstick]

I've tried most of the mainstream oils over the last 208,000 miles and came back around to toyota OEM which the local dealer sells to me for the same price as M1 at wall mart.

I have noticed the engine stays quieter longer with Toyota oil. Every time i pull into my garage I always listen to my engine for a few seconds before shutting down. Been doing this for 8 years now and I can usually hear when something sounds different like when the ticking gets louder. I also change it every 5-6k despite the 10k recommendation. Run OEM filters and still have the plastic housing and a cheap pennzoil filter wrench with no issues so far.

I have used the OEM Toyota oil & filters on my 2010 & now on my 19' and see no reason to change. But I change my oil @ the 10,000 mile intervals (did the 1st @ 4000 miles) because if the Yota Engineers say 10,000 then they must be pretty darn confident in the oil & filter lifespan.

 

[Dollar Retriever]

Toyota doesn’t make oil, they just buy oil from somewhere else puts into bottles stamps their logo.
As long as you use right oil, all oil you can find in US they are all good oil.


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