0W-8 in 2026 Toyota Prius
- Thread starter dbvettez061
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Purchased it 2 weeks ago , itās not my aunts Prius.200 hp , quiet , nice drive.
We need pics when you get a chance please.
Patman
Staff member
Thatās the combined power. In the plug in version it is even more powerful, 220 hp
Yes. The ICE is 150hp alone.
Because it might be the best worst case scenario size they can build economically. Typically the best efficiency of an engine running Carnot cycle from what I remember is 40% of the peak power and rpm. If that 200HP is when running Carnot and Atkinson is another 30-40% less, it would mean that 200HP is running at 40% x 60% = 24% of peak at optimal efficiency, which makes it 48HP.
48HP seems like a good power to drive a tear drop in highway speed climbing hill I guess?
What engineering/chemistry degree do you have?
I tow up 10,000 foot mountain passes pulling a 5,000 pound travel trailer running 0W/20. Certainly the motor (5.3-Silverado)) should have blown up by now.
Our 2013 Prius 2 has 134 combined HP! I find it to be an excellent car with adequate power. Of course, itās been paid for 8 years ago, so that helps.
Really, the current prices for this new, more capable Prius are pretty good. Our 2013 was $24,000 back in the day. Add a bit of inflation, and these new models look pretty good.
I would love to have a new Prius, but our 2013 is such a solid, reliable, and paid for carāā.
Really, the current prices for this new, more capable Prius are pretty good. Our 2013 was $24,000 back in the day. Add a bit of inflation, and these new models look pretty good.
I would love to have a new Prius, but our 2013 is such a solid, reliable, and paid for carāā.
We have a 2023 Prius which AFIK is the same car and engine. The 2023 calls for 0w-16. Weve been tempted to split the difference and use 0w-12.
We also have a '17 Prius V that calls for 0w-20 but I belive the same engine was later spec'd for 0w-16 in the US market.
We are tempted to try things on the thinner side. Just to be clear here, we have over 265k miles at 10k OCIs on two Toyota Prius using 0w-20.
We also have a '17 Prius V that calls for 0w-20 but I belive the same engine was later spec'd for 0w-16 in the US market.
We are tempted to try things on the thinner side. Just to be clear here, we have over 265k miles at 10k OCIs on two Toyota Prius using 0w-20.
IMO, if you are driving in easy load situations, then follow Toyotaās recommendations. If you feel that you are pushing your cars a bit harder, you could go 0W-20. Might not make any real difference, but perhaps you would feel better?
We have an old 2013, so we only run 0W-20. Valvoline Restore and Protect, of course.
We have an old 2013, so we only run 0W-20. Valvoline Restore and Protect, of course.
I'm impressed. The page from the owners manual explains more about oil than any owners manual I've ever seen, and OK's the use of .... even that "heavy" 10w30 oil 
, and explains that it may be more difficult to start when the temperature is below zero.
I'm used to seeing the implied threat of complete engine failure if you don't use the oil spec'd by the manufacturer and labeled on the filler cap.
, and explains that it may be more difficult to start when the temperature is below zero.I'm used to seeing the implied threat of complete engine failure if you don't use the oil spec'd by the manufacturer and labeled on the filler cap.
2014 Prius /
102.000 miles, only 0W-40 since new /
102.000 miles, only 0W-40 since new /
If you are happy with it, all good!
However....the Gen 3 Prius low tension rings are known to start burning oil after 100 to 150 k miles. Just saying, why don't you read up on Valvoline Restore and Protect? Oil technology keeps changing.
I guess Toyota doesnāt know what itās doing ā¦ā¦..
Toyota knows what they are doing. Because of engine design accommodations they have determined that an 8-grade oil has sufficient HT/HS under most circumstances to prevent excessive wear in the engine. Which is fine. But it doesn't preclude the use of a higher grade to additionally help reduce wear if an owner decides to do so. It won't harm the engine.
Toyotas and other brands like nissans, kias/hyundai, mitsubishi and others all say you can use many more grades in the exact same engine sold here in the US but they can't say to use multiple grades here. This is because of a stupid epa regulation saying that only the specified grade used in testing is to be stated with only minor exception like if the grade used in testing might not be thin enough for extreme cold so the documentation provides guidance on what they can do. But you can test with a higher grade and recommend that higher grade and a lower grade which I think Hyundai Kia does in some turbo engine. Most of the info on that is after page 8 specifically 9 and 10 but there's some good info on other things beginning with 1. What the oil cap states is minimum not maximum.I'm impressed. The page from the owners manual explains more about oil than any owners manual I've ever seen, and OK's the use of .... even that "heavy" 10w30 oil
I'm used to seeing the implied threat of complete engine failure if you don't use the oil spec'd by the manufacturer and labeled on the filler cap.
https://dis.epa.gov/otaqpub/display_file.jsp?docid=49388&flag=1
For all toyotas using at least 16 grade you can use up to 40 grade. And for all toyotas using 0w-20 you can use up to 50 grade. the 16 grade one came from a 2021 camry manual and the 0w-20 one came from a 2015 prius manual so both engines are modern with dual vvti and such.
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I havenāt seen it posted much here but itās new āFilm formingā additives that have allowed for practical use of 0W8 while maintaining low wear rates:
ā0.8% fuel economy improvement over 0W16 oilā
āThe film former increased the oil film thickness without increasing the viscosity.ā
http://k8s-default-saeorgin-783e63d...ra-low-viscosity-0w-8-engine-oil-2020-01-1425
ā0.8% fuel economy improvement over 0W16 oilā
āThe film former increased the oil film thickness without increasing the viscosity.ā
http://k8s-default-saeorgin-783e63d...ra-low-viscosity-0w-8-engine-oil-2020-01-1425
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Iām no tribologist. However, I donāt think that what you are mentioning is a new thing. These are anti wear and anti friction additives. Valvoline Restore and Protect refers to āLiquid Shield technologyā. Of course, we donāt really know what their exact formulation is. Moly? Boron? Zinc? Titanium? If anyone knows, they are not talking.
And maybe you are correct, and the lube manufacturers have synthesized a new class of additive. The research labs are working all the time, and improvements are likely, and probably kept secret.
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It doesn't have a 200hp engine.
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