By saying change it back to the recommended viscosity at the next oil change. If they recommended if forever it would be a black mark from CAFE.
Toyota’s stance on using a heavier weight oil
- Thread starter PWMDMD
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Higher viscosity gives more MOFT between moving parts which gives more engine wear protection.
I want real proof 5W-40 will harm my engine before I drain my 7.5W-40
Check the journal bearing clearances ... shouldn't take more than a week.
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No arguments here. However, if you look at the two manuals I posted Toyota removed that wording in the 2026 one. 2024 Highlander on the left, 2026 Highlander on the right, same T24A engine
Maybe CAFE is catching on and doesn't like that Toyota is basically giving permission to use thicker oil above the engine certified and recommended viscosity.
edyvw
$50 site donor 2026
Absolutely.
A lot if requirements are based on execution of certain policy. Start/Stop was just 1mpg, whether it delivers or not.
Elkins45
Site Donor 2026
It’s the new Meatless Tuesday.
4wd
$50 site donor 2026
But, but, but, Taco Tuesday !
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That's why I bought a Sport!Wait, that's an acronym? I thought it was a warning
https://www.amsoil.com/c/gasoline-m...le=list_view&text=&sort=relevance&pageSize=20
Pablo, you could be mentioning this fine oil, but I will do it for you. LOL
Pablo, you could be mentioning this fine oil, but I will do it for you. LOL
It appears that's the case - the EPA likely didn't 'smack' Toyota over this but told them to stop using that wording. Reality is, Toyota has put it in writing that other oils can be used in this engine. Ours gets 0W-30 when I change it, including in between the free oil changes Toyota covered for the first 25k miles. Dealer was likely putting 0W-20 or maybe something higher that they have in bulk (though 0W-20 is probably their "bulk" oil nowadays).
I'm switching to 5W-30 from now on in our 2022 Rav4 Hybrid. We move furniture and boxes between houses and drive at high speeds, for example 55 mph in a 45 mph zone. We're in Honolulu so no freezing temperatures unless you drive to the summits of Haleakala or Mauna Kea.
I am seeing 0W-8 for best fuel economy! 10W-30 in extremely low temps and the engine may become difficult to start, what are these temps? So 0W-8, 0W-16, 0W-20 or 5W-30 engine oil is recommended!
So 0W-8 for fuel economy and 5W-30 for engine longevity!
So 0W-8 for fuel economy and 5W-30 for engine longevity!
This is the oil page in the manual for my buddy's new '26 Subaru ( a Toyota Subsidiary).
Some if the wording is what throws me off... " if 0w16 synthetic oil is unavailable, 0w20 Conventional oil may be used....."
I'm sorry WHAT?
0w20 CONVENTIONAL???
Didn't realize that was a thing... it was my understanding that all 0wXX were Synthetic.........
They green-lit that weight for my 2016 Tundra - every Toyota owner’s manual says something like “Under extreme operating conditions, like towing, or driving in mountainous terrain, a higher viscosity may offer better protection.”
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