If 0w-16 is so important, why foreign manuals have other viscosities? I dont think Toyota would list them if they had any downside for engine reliability
2025 Toyota 2.5L Engine Oil Viscosity Update.
- Thread starter GI_GRIFF
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If 0w-16 is so important, why foreign manuals have other viscosities? I dont think Toyota would list them if they had any downside for engine reliability
No the point is to reduce horsepower requirements in some operating conditions. It’s solely for reducing fuel consumption.
It is only important for a small decrease in fuel consumption. People keep trying to make up other reasons that aren’t there.
The argument is made that thinner oils do not offer notable mpg improvements. I achieved 70 mpg in a 2022 Honda Insight, using HPL PP 0W8 as part of a synergy.
Thinner oils are an intelligent choice for appropriate applications. Thicker oil surely provides adequate protection, and then some.
A noteworthy development is that 0W8 Is recommended for 2025 Camry in Australia !
Now 2025 RAV4 AWD in the Simpson Desert ? 0W16 says Toyota.
Four cylinder dynamic force has been in play for almost a decade and Toyota is now trending thinner in recommendations.
In Europe, I would decide oil on a case by case basis.
BTW, I would argue that @nthach 's Uber driving is not quite as severe as it seems due to daily freeway usage.
My dad and I used SAE10 monograde Resolute brand oil from Fleet Farm as a flush oil after we did the intake gaskets on my '98 K1500. Previous gaskets leaked and I had oil/coolant snot a plenty internally. I don't remember if we used anything else with it but we used the 10 after getting it back together to flush all the crap into the filter.
That was 20 some years ago. For whatever reason, straight 10 was a thing. No idea what its intended use was for, obviously not a off the shelf oil anymore.
I am going to finally discuss mpg's, after years of restraint.
I remember how sluggish my 1982 Tercel was on thicker oil with the AC on.
So long as there is adequate protection, and as you point out, that is a crucial qualifier, thin oil can be part of a strategy that yields worthwhile reduced fuel consumption beyond government testing.
1% to 2% per change in grade, although there may be less between a -16 and -8 due to the actual change in HT/HS. Any other observed improvement is not due to the oil.
OVERKILL
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There's an SAE 10W, but no SAE 10 as part of J300.
The biggest problem I ran into was super light rims being destroyed by wonderful NorCal highway potholes.
I remain fascinated why you don't use, say, ESP 0W20 or OVERKILL 0W20.
Looks like the current SAE 10W is mostly a hydraulic oil now?
For my case, it may have been 10w, been too long now. Regardless, it was a automotive mono 10 grade that was off the shelf at the time.
Usually for winter use, that’s what many of those were for.
OVERKILL
$100 Site Donor 2021
With SAE 10 not existing, it would have had to have been a 10W, which could have been extremely thin:
Since KV100 lower limit for the grade is 4.1cSt.
So this thread is still going, huh? Maybe we will get it sorted out this time.
How about a 0W16/0W8 bingo card? We have the J300 chart and a Toyota manual from another country posted. That’s at least good for two spots.
How about a 0W16/0W8 bingo card? We have the J300 chart and a Toyota manual from another country posted. That’s at least good for two spots.
Yea, my dad would spend time on the freeway and he would avoid Oakland/SF as much as he can. I still used 5W-30 and 0W-16 in the new Camry to try to provide a thicker film for stop and go.
Now that he’s stopped driving for Uber, I’ll reconsider the 5W-30 in the RXh. It’s their “nice” car again. The Camry has been on 0W-8, but I’ll be weight-flexible for that.
It's written by Germans...I'm not surprised by the language. They are quite the sticklers for rule following iirc.
"I'll take 'Are you a thickie or thin-e ' for $200, Alex "
I guess I shouldn't let my new Toyota engine know that it's utilizing HPL No VII 5W-30 instead of 0W-16 TGMO or other brand of the 0W-16 grade engine oil ! I might incur one of those"Oh, the humanity !!!! " moments !
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So do you think there is a benefit to running 0w16 vs the 0w8? Im spec'd for 0w8, but looking to run something thicker. Would prefer to run 0w16 since its in the book, but I was told I could run 0w20 as well.
Permission slip signed for 0w20. Run it!!
Understood, but is there perceived benefit over 0w16?
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