2025 Toyota 2.5L Engine Oil Viscosity Update.

I have been going crazy trying to make a good choice of a 0w-16 oil for my new Toyota without using that world's greatest pyramid scheme $15.00 a quart oil. I called my local Toyota Dealer today 6/6/2025 where I purchased my SUV and got Jason, the service manager. I asked him directly if I could switch to a 0w-20 engine oil without Toyota corporate rejecting my warranty. He looked it up and said according to Toyota corporate I can permanently use 0w-20 or 5w-20 engine oil in my 2025 Rav4 SUV with no risk of causing warranty issues. I know it is not that big a difference really, but it makes me feel better, plus it opens up more choices. I thought maybe some people would like to know this.
Dealership doesn’t use $15 Qt oil, why would you? That engine will take any 0w20 and not care and you won’t gain no added protection with a 5w20.
 
CAFE has caused some manufacturers to fail miserably in efforts to squeeze out credits. Warranty engine replacements are expensive for those same manufacturers, who have not come up with solid, efficient designs.

Toyota for one has engineered greater efficiency, while maintaining their stellar reputation for reliability. They are slow walking the transition towards 0W8.

Of course there are examples that show otherwise. Tundra. The greatness of Ford's Maverick Hybrid.

But quality of thinner oils and associated engine designs should change the thinking. Evolve.

I once used Castrol 0W20 Professional because VW 507 meant enhanced piston ring cleanliness per ACEA spider graph.

Viscosity selection must be well thought out, but I always consider oil quality and oil qualities first.
 
Is there any difference between Mobil1 0w-16 and Pennzoil Platinum 0w-16, both cost the same at Walmart.
Btw, you can get TGMO from World toyota onlinr for $6 qt with free shipping (have to spend min $75)
 
It wasn't written in my owner's manual, or anyone else's for that matter. The service manager has paperwork from his Toyota Regional Representee-Toyota Corporate, where it is written. I doubt if Toyota will have it on highway billboards stating this. I assume the 0w-8, 0w-16, and maybe the 0w-20 are more related to increasing fuel milage (CAFE) than promoting the longer life of the internal engine parts. I may be wrong here, for all I know racing people are running 0w-8 engine oil in drag race engines now because it protects better than 20w-50. I just know 0w-16 seems thin to me, it doesn't mean it won't protect as good as a 5w-30, I guess. I am not a college educated mechanical or chemical engineer. I mean, 0w-20 really is not much different than 0w-16, it just feels a little better. Hell, if the guy would have said I could run 5w-30 in it with no warranty issues, I would have felt so good I would have had to sit on my hands to keep from waiving at everybody. Maybe the guy just told me that to shut me up, if that is the case, it worked. Later, Joel
It is in the manual about using alternate oils for hard use, towing etc. but never states which oils… so you never got anything in writing? That sucks because I thought you had something. You should ask for that documentation, or at least get a bulletin release number for reference
 
Is there any difference between Mobil1 0w-16 and Pennzoil Platinum 0w-16, both cost the same at Walmart.
Btw, you can get TGMO from World toyota onlinr for $6 qt with free shipping (have to spend min $75)
Pz platinum is a GTL base Mobil 1 isn’t both great oils. Toyota oil is rebottled Mobil 1
 
They have different codes, they are not the same engine. Stop spreading misinformation.
The information is essentially correct. If you look at my posts and threads you will see the foundation.

Stop/Start factors, engine size, and compression ratios of 13:1 vs 14:1 are the minimal differences.

Toyota specs 0W8 and 0W16 across a broad spectrum of A25A and M20A engines, for model year 2025 (and even several years earlier!).

The big point is that often, hybridized engines (FXS) spec the thicker of the two.

Siennas can have alarming fuel dilution.

I stay informed on all this as a delivery driver subcontractor who has put 150k miles each on a 2019 Lexus UX 250h and a 2022 Corolla Cross. I post today with ~ 63k miles on a 2024 Corolla Cross Hybrid.

It is not misinformation I am posting. It is accurate and updated information.

This board has a very strong propensity for preferring thicker allowable oils, creating a safe cushion and driver confidence. My counterpoints threaten no one, and only offer more thorough oil knowledge.

Have a look at my threads if you wish to acquire broader information, friend.
 
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I worked at a dealer for 12 years, been lurking here since 2005, frequent several other auto related forums. No one has ever produced a warranty denial document for viscosity….now aftermarket extended warranties are a different story.
Right, but aftermarket extended warranties are mostly a cash grab, good-luck-getting-them-to-pay-anything setup. They are the payday lenders of the “insurance” industry, to me.

I’d expect them to give anyone the runaround for anything and everything, oil-related or not.
 
Right, but aftermarket extended warranties are mostly a cash grab, good-luck-getting-them-to-pay-anything setup. They are the payday lenders of the “insurance” industry, to me.

I’d expect them to give anyone the runaround for anything and everything, oil-related or not.
It is always best to purchase a solid vehicle and have a smart, consistent maintenance plan, so as to never have a warranty claim.
 
Right, but aftermarket extended warranties are mostly a cash grab, good-luck-getting-them-to-pay-anything setup. They are the payday lenders of the “insurance” industry, to me.

I’d expect them to give anyone the runaround for anything and everything, oil-related or not.
100% agree. Also no consumer protection like you get with a factory warranty.
 
So, just say 'Jason' said so?

I'll tell my co-worker that. He owns one of those vehicles.
I would assume all Toyota Field reps. are not all the same. Some may not want to take the time or have the time to look up the fine print. This also is why using thicker oils is not posted on giant highway billboards all over the country. In order to meet the government fuel milage specs their cars need to use the thinner oils. If the overall fuel milage averages go down because all the customers figured out using 5w-30 is an ok thing with Toyota warranty, those nationwide fuel milage averages would go down for Toyota and our tree huggers in Washington would start putting fines on Toyota, that they would have to pay if they want to continue selling cars in the USA. You know, going back to riding horses for transportation does have some benefits. But then our government would make us start feeding some low gas (fart) emissions food or something. Not to mention the waste clean-up!
 
The information is essentially correct. If you look at my posts and threads you will see the foundation.

Stop/Start factors, engine size, and compression ratios of 13:1 vs 14:1 are the minimal differences.

Toyota specs 0W8 and 0W16 across a broad spectrum of A25A and M20A engines, for model year 2025 (and even several years earlier!).

The big point is that often, hybridized engines (FXS) spec the thicker of the two.

Siennas can have alarming fuel dilution.

I stay informed on all this as a delivery driver subcontractor who has put 150k miles each on a 2019 Lexus UX 250h and a 2022 Corolla Cross. I post today with ~ 63k miles on a 2024 Corolla Cross Hybrid.

It is not misinformation I am posting. It is accurate and updated information.

This board has a very strong propensity for preferring thicker allowable oils, creating a safe cushion and driver confidence. My counterpoints threaten no one, and only offer more thorough oil knowledge.

Have a look at my threads if you wish to acquire broader information, friend.
It's a family of engines, doesn't mean all members are exactly the same. They all have different codes
 
I would assume all Toyota Field reps. are not all the same. Some may not want to take the time or have the time to look up the fine print. This also is why using thicker oils is not posted on giant highway billboards all over the country. In order to meet the government fuel milage specs their cars need to use the thinner oils. If the overall fuel milage averages go down because all the customers figured out using 5w-30 is an ok thing with Toyota warranty, those nationwide fuel milage averages would go down for Toyota and our tree huggers in Washington would start putting fines on Toyota, that they would have to pay if they want to continue selling cars in the USA. You know, going back to riding horses for transportation does have some benefits. But then our government would make us start feeding some low gas (fart) emissions food or something. Not to mention the waste clean-up!
Again, see if you can secure that document or get a bulletin number off of the document. Im guessing he just told you what you wanted to hear...
 
Again, see if you can secure that document or get a bulletin number off of the document. Im guessing he just told you what you wanted to hear...
I am guessing there is no document, this was all done by telephone. He possibly, as you said, wanted to shut me up, and it worked. I am not going to poke the bear and ask him to produce that document and print it out for me. As you are insinuating, it probably doesn't exist.
 
I am guessing there is no document, this was all done by telephone. He possibly, as you said, wanted to shut me up, and it worked. I am not going to poke the bear and ask him to produce that document and print it out for me. As you are insinuating, it probably doesn't exist.
Yeah but Im guessing you're under the same thought as I and many others, it says in the manual that we can use other viscosity - but it stops there. No guidance from toyota at all on this... Have you tried the district service rep or corporate?
 
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