GR Yaris (Gen 2) Mobil 1™ ESP X2 0W-20

speeddemon666

speeddemon666

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May 24, 2025
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My little bundle of fun is coming up for it's first service and was thinking of requesting being refilled with the supplied above.
Does anyone think there would be any problem using this oil?
 
speeddemon666 said:
My little bundle of fun is coming up for it's first service and was thinking of requesting being refilled with the supplied above.
Does anyone think there would be any problem using this oil?
Click to expand...

Like CerN said, this isn't an SP spec oil. In fact, it's an SL oil, which is three steps before SP, and likely a very "fast road" to ending up with a piston in the oil pan.

Screenshot 2026-04-26 102929.webp
 
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speeddemon666 said:
I don't know where that chart came from, but it differs from Mobil website.
https://www.mobil.co.uk/en-gb/engine-oil/mobil-1/car/mobil-1-esp-x2-0w-20
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It also came from the Mobile website :LOL: Maybe not the UK one.

Edit. The link you provided is "meets or exceeds," which is not the same as actual approval. The oil does not have the actual certification, just the manufacturer telling you "trust me bro." For the oil to display SP or GF6A, it has to have the certification.

While I haven't heard of it from Toyota, other manufacturers have pulled oil samples from wrecked engines, and denied warranty because the oil didn't have the correct certification. BMW LL, GM DEXOS, etc. In the case of GM, it's literally often a case of the owner being duped by shady marketing wording "meets or exceeds."
 
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This may or may not have relevance, depending on your view. I would have thought that given the depth of Mobil One's partnership with Toyota Racing, they would approve.
 
Doesn't really matter if the oil is good or not. I wouldn't risk putting anything without the specific required specification on it. If something were to happen to your engine, and Toyota finds out it was oil lacking the correct spec, they will have an easy reason to void your warranty.

There are plenty of options. Ravenol for instance has a 0w-20 with API-SP spec.
 
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speeddemon666 said:
This may or may not have relevance, depending on your view. I would have thought that given the depth of Mobil One's partnership with Toyota Racing, they would approve.
Click to expand...


You asked the question, "Does anyone think there would be any problem using this oil?"

I gave you some data points showing the oil does not have the API SP approval, nor the ILSAC GF6A certification. Google will even tell you that "meets or exceeds" is not approval, but "trust me, bro" marketing.

Now you're trying to convince me that the oil is good to go :) So it sounds like you weren't really looking for advice, but agreement on a choice that you already made.

Mobile 1 says their internal testing shows it meets the standard. It most certainly does. An API SP approval and/or a GF6A certification is a third-party testing in addition to what the oil manufacturer claims, and accepted by whatever OEM tells you they accept it. Toyota goes as far as showing you examples of the approval and certification marks for the oil.

In the end, it's your $10,000 G16E. If you smoke it on a "meets or exceeds" oil, Toyota probably doesn't care. Me? I'm asking why Mobile 1 sells an approved and certified 0W-20, but didn't bother with doing it for the ESP X2 0W-20. Why? I don't know, but the easy way forward without having to think about it is putting what Toyota said to use in it. I use the GR Endurance blended by Eneos, but there are loads and loads of great approved oils.
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No one on here is the font of all knowledge and if in a conversation points are put across contrary to expressed opinion to eventually arrive at a consensus then it's all good surely?!
Some, like myself want to know for themsleves rather than just get told something by a self- proclaimed all-seeing eye, and believe that!
The Tao that can be told is not the eternal Tao.
 
Looking at the virgin oil analysis of Mobil 1 ESP X2 0W-20, I’d say the calcium is on the high side (1855 ppm), while Toyota 0W-20 API SP is typically in the 1100–1300 range. It’s also much lower in molybdenum compared to Toyota’s ~700 ppm. In their materials, Toyota mentions they add molybdenum to compensate for a weaker oil film and to help prevent LSPI.

Nothing wrong with experimenting, but in that case it’s worth knowing what you’re looking for and what pitfalls to avoid.
 
When the OEM Toyota oil is readily available at a similar price, as are other oils which are definitely SP/GF6A rated, I'm not sure why anyone would feel the need to experiment with other oils and potential risk something catastrophic/expensive happening?
 
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Duke said:
When the OEM Toyota oil is readily available at a similar price, as are other oils which are definitely SP/GF6A rated, I'm not sure why anyone would feel the need to experiment with other oils and potential risk something catastrophic/expensive happening?
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I ran Toyota oil for about 27 000 km, did oil changes with used oil analysis every 5 000 km. I've got a pretty good idea of what wear looks like with it.
Now I'm running Ravenol DFE 0W-20, will see what the lab results show. It's PAO based, so it should flow a bit better in cold temps and it's slightly thicker at 100C compared to the Toyota oil. The one I bought is still API SP, but Ravenol also offers an API SQ version now, which should bring some improvements over SP, or it could be the same oil. Will see.

It's more about curiosity than anything else.
 
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tonic said:
I ran Toyota oil for about 27 000 km, did oil changes with used oil analysis every 5 000 km. I've got a pretty good idea of what wear looks like with it.
Now I'm running Ravenol DFE 0W-20, will see what the lab results show. It's PAO based, so it should flow a bit better in cold temps and it's slightly thicker at 100C compared to the Toyota oil. The one I bought is still API SP, but Ravenol also offers an API SQ version now, which should bring some improvements over SP, or it could be the same oil. Will see.

It's more about curiosity than anything else.
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Similar to me. Happy with the dealer using the right Toyota oil, but there have been enough stories of garages putting in the lower spec oil so I started supplying them with Ravenol a few services ago so I know what's going in the car.
 
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