Toyota’s stance on using a heavier weight oil

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.
They got rid of that in 2023 I think.
 
View attachment 337920
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.........
Yeah, I think the wording with the "conventional" 0W-20 is an error on their part. It says "should be" changed back to 0W-16 ... "should" means never change it back, lol.
 
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.”
This is my rationale as well. That statement is in the manual for both the RX 350 and Tundra.
 
Yeah, I think the wording with the "conventional" 0W-20 is an error on their part. It says "should be" changed back to 0W-16 ... "should" means never change it back, lol.

IIRC my 2014 Outback’s OM lists conventional as well for that part. I always thought it was odd.
 
IIRC my 2014 Outback’s OM lists conventional as well for that part. I always thought it was odd.
Don't think there is much if any "conventional" (meaning not full synthetic or a synthetic blend) 0W-20 even made. Besides, why would it have to be "conventional" if the viscosity just went from 0W-16 to 0W-20. Think there was something lost in translation on that in the OM.
 
Yup I don't see Toyota green lighting the use of 5W-30 or higher. They're still be conservative
Not conservative, constraints. They are still eating the CAFE-teria at the mess hall. 0w40 for everyone I say. If it already takes a 0w40 then give it a boutique 0w40 instead. If its 10w60, demand a 10w70. If its leaking, on fire 🔥, leaking coolant into the oil 🛢️, its time for 40w70 with Liquimoly Motor Oil Saver added.
 
and drive at high speeds, for example 55 mph in a 45 mph zone
😂 Aren't you the law-breaking rebel !
And no this model within the same architecture having one cylinder less doesn't change anything.
Is that from a non-US owners manual ?
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.”

They got rid of that in 2023 I think.
Our '24 Grand Highlander owners manual still includes that phrasing. I posted a screenshot above. Maybe Toyota told the EPA it was too late to change it. 😂 Then again, the digital PDF version online is no different and still includes that phrasing.
 
😂 Aren't you the law-breaking rebel !

Is that from a non-US owners manual ?



Our '24 Grand Highlander owners manual still includes that phrasing. I posted a screenshot above. Maybe Toyota told the EPA it was too late to change it. 😂 Then again, the digital PDF version online is no different and still includes that phrasing.
Yes non US so no need to comply with 2010 EPA guidance. US manuals used to look like that some time ago.
 
The 2 toyotas i maintain, for their owners, get Mobil 1 Euro 0w40. That's my 2 cents on it.
If they want water used, they can go to someone else for oil changes.
And since I am friends with the driver who delivers the bulk oil, to the local toyota dealership, they get 0W30, and is the main oil in use there.
 
So, this Toyota dealership in Canada has 0W-30 bulk oil delivered to use in all cars?
Not all, most.
They also get 5W30 delivered to the dealership, but they use about 4.5 times as much 0W30, as they do 5W30. They also buy cases of 10W40 from him, but not a lot of it, and not in bulk, just cases. Its all Petro Canada oil, regardless of the viscosity. He also delivers to the GM, Ford, Subaru, Honda, Hyundai, Kia, Jeep/Ram/Dodge dealers in town, and they all get the same oil. But many tend to use heavier oils more, depending on the dealership. He also in his truck has bulk 10W40, and 5W40 diesel oil but its Chevron Delo not Petro Canada, but doesn't sell as much of them. He carries cases of most oils in side cabinets as well, for the less common oils. I buy the bulk Delo 5W40, and cases of Mobil 1 0W40 from him. I use a lot of Delo 5W40, which isn't the main oil recommended in my fleet, but is my choice of oil anyway.
 
Back
Top Bottom