2025 Toyota 2.5L Engine Oil Viscosity Update.

I don't get it why people here make life so hard.....Toyota (their suppliers, their design process) I trust making their engines robust enough to handle 0w-16 for the warranty period....Stellantis? lol, no. IIRC Toyota 0w16 has lots of moly; surely for a good reason.
Do you know what that reason is?
 
Walmart delivers for free if you meet their order minimum. Order 2 jugs?
As I'm sure you know, they have a $35.00 minimum for free delivery. I purchased a single jug of M1 ESP a while ago (had no need for more) and also ordered some household cleaning supplies that I needed, bringing the order to just a skosh over the $35.00 minimum. Walmart, bless their collective hearts, made two deliveries from that one order, arriving on different days and from different points of origin. They certainly stood by their free delivery policy.
 
Use whatever you want in that a25a hybrid or not. Nebraska gets chilly so something like M1 ESP 0w-30 would be great. ESP 0w-20 would be another good option if you want thinner. 0w-16 and 20 are virtually the same except 0w-20 can have the same or tad lower kv100 as a 0w-16 while still having a higher hths.


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Somewhere in the fine print the Toyota
For model year 2025...

With the A25A-FKS engine, Toyota specs 0W16 in some vehicles.

With the A25A-FKS engine, Toyota specs 0W8 in other vehicles.

The Toyota service manager found some fine print from Toyota Corporate saying using 0w-20 or 5w-20 oil will not cause any issues with warranty on the A25A-FKS engines.
 
Somewhere in the fine print the Toyota


The Toyota service manager found some fine print from Toyota Corporate saying using 0w-20 or 5w-20 oil will not cause any issues with warranty on the A25A-FKS engines.
What dealer is that? I called my local and they told me that if I dont use 0W8 that it would void the warranty. Even though I quoted the OM stating that Toyota is saying that you can use an alternative viscosity if its hard use etc...
 
Do you go by what is written, or what someone says? Written word wins.
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 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,
Race engines use thin oil to minimize friction and enhance horsepower output. Additionally, these engines undergo frequent rebuilding. It is certainly feasible to utilize 5w30 oil in your daily driven Toyota. Pics from a few of my 2022 Camry SE AWD 2.5 oil changes.

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I am too tight to fork over the bucks for that fancy stuff and Amsoil also. Different reason for Amsoil though, I wouldn't buy Amsoil for $5.00 a quart as long as they keep their pyramid marketing scheme going. Anyhow, he said OK to 0w-20 or 5w-20. I will wait until I am out of warranty, then it will be 5w-30.
 
I am too tight to fork over the bucks for that fancy stuff and Amsoil also. Different reason for Amsoil though, I wouldn't buy Amsoil for $5.00 a quart as long as they keep their pyramid marketing scheme going. Anyhow, he said OK to 0w-20 or 5w-20. I will wait until I am out of warranty, then it will be 5w-30.
If I wanted to be frugal, I would run ESP 0w30 in your vehicle. I may in the future as well.
 
Race engines use thin oil to minimize friction and enhance horsepower output. Additionally, these engines undergo frequent rebuilding. It is certainly feasible to utilize 5w30 oil in your daily driven Toyota. Pics from a few of my 2022 Camry SE AWD 2.5 oil changes.

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I am an old guy now, and I remember, years ago, looking at a brand-new Ford Mustang Shelby on their show room floor. They had the hood raised on it and the engine had a little metal tag attached to it that said "Hand built by John Doe" or somebody at one of the Ford Factories back then. I remember the oil fill cap on that engine had 20w-50 printed on it.
 
If I wanted to be frugal, I would run ESP 0w30 in your vehicle. I may in the future as well.
I have used these in the summer. The first is Canadian Tire rebottled PUP which is was discontinued and now brought back as “Extended Performance” Have also used Actual yellow bottle PUP 5w30. In winter have used 0w30 Euro LX and M1 AFE.

Very consistent characteristics from the MM(PUP) throughout a 5k interval in terms of fuel efficiency, engine noise.

Using the Kirkland, for the first 2000kms, the fuel efficiency was consistently outstanding and delivered consistently high scores on the trip summary (43-45mpg), that I had never seen before or after. These trip summarys reverted back to normal ~39- 40mpg and there was a very slight bit of valve chatter when warm I didn’t like by the end of the interval.

On deck is clearance MM(PUP) in 5w20 and 0w20. I am curious to see what the w20 does in terms of mpg and NVH.

Ultimately this is now my wife’s daily driver and I am more concerned about the lack of mechanical sympathy. I think my days of using 0w30 are done, it simply isn’t getting hot enough in winter to warrant 0w30 when my wife turns the heat on right away and the coolant temp gauge cant even hold at max, we know the oil temps are much lower.

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