Toyota recomends w-8. It is a first fill oil. Not a run in oil. The max temperature is not the 8 but it is the one beyond the right arrow. Or cold elbow the left arrow. Imagine if it was not. We would all world wide have serious issues. Many years ago, when engines had very large tolerances, we used to tra el in the heat foe hors and occasional, if it got too hot, we would look for a suitable shade, preferably with a breeze, open the bonnet and let the engine cool off. If the coolingvsystem is running well, oul temperatures remain bellwo 90 degrees on petrol engines and 100 on diesel. Toyota hybrids, rum mostly at lower the 90. I run an App or two to check this. And ot it all runs smooth. I use Torque Pro and OBLink with an OBLink MX+ dongle. For the hybrid I run through the same dinglePage 433. Australian OM.
2025 manual not published yet.
Any difference in legal language is CAFE regulations making Toyota US require low viscosity oils.
https://lexusmanuals.com.au/#/?q=ey...naW5hdGlvbiI6eyJwYWdlIjoxLCJwZXJQYWdlIjoxMn19
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Not correct. Use 0W-8. If not available use the next grade 0W-16 next oil change revert back to 0W-8. The engines are first filled with the recommended oil.Another thick vs. thin thread. The reason the manual says that is non-technical and is regulatory. The manufacturer is required to strenuously discourage the use of any oil grade that was not used to obtain the mileage rating. This applies to Canada as well as the EU and elsewhere that has emissions or CO2 limits. That’s the sole reason the manual is worded that way.
Recommended because by law, no one can force a client to strictly use a type of oil. That is the only reason. Dealerships use cheaper bulk oils. So they buy 0w-20 bulk. Then tell us that, that is the recommended oil. liars.
Stick to 0w-8. Use a dongle from OBD Link. OBD Link Mx+ or better and OBDLink App. Check oil temperatures there. I also use Torque with the same dongle. Compare outside air temperature with oil temperature and coolant. I have driven my Yaris cross hybrid with 43 degrees temperature. If you drive normally, no racing, no heavy loading, no high speed chasing for too long. That holds steady at 70 to 90 degrees celcius oil temp and 80 coolant. Inntown it is even less due to Stop and start hybrid mode.the oils must be thin to lubricate fast when cold and keep surfaces wet. The rest the engine does it. The board computer does it. TGMO has tons of Mollybdnum and so does Liqui-Molly as well as Ravenol. Mobil 1 0W-8 wich is almost the same as TOGMO with the same grade. There is a lot of money soaked in these oils for any of them not being good enough. Warranties are money making instruments and keep cars under control, special the ones under credit from Toyota Bank. Chain of events. I run a VW Golf 13 years. No Dieselgate changes. No nox problems, always serviced by me and I always used VWs recommended 05-30 Edge oil. never a froun. I had an issue. Stick to the OEM recommendations. It wears off less. Also don't stick to 15k km oil changes. Do it early. 8500 km. keeps oil clean and healthier. Keeps engine healthier. If one can afford it. I save for it. Don't use new cannisters with dates older than 2 years. Months is better. It pays off.