0W-8 in 2026 Toyota Prius

[dbvettez061]

Purchased it 2 weeks ago , it’s not my aunts Prius. 200 hp , quiet , nice drive.
850 miles on it, will do an oil analysis now. The 0w8 is like water , obviously, but the new oil is very dark in color. There must be a lot of additives in this oil, Toyota oil, made by Mobil 1 …..

 

[JavierH19]

You can use other grades if you get the itch. And yes to make it thinner they had to up the additives. This is from a different model overseas but it's the same new engine architecture. if it was mine I'd use 0w-20 year round. it's not that much thicker, 8 is 5 cst average with 16 being 6.5-7.5 on average and 20 being 7-8 cst. I wouldn't take it to 10k like toyota says. I'd cut it in half.

 

[ATex7239]

You’re right, that 0 x 8 oil is basically just city tap water. Toyota and Exxon/Mobil have no idea what they’re doing.

 

[Pablo]

I would run a good 0W-20 and call it good.

But a 0W-8 will not kill the engine, it's not like it's lugging 4WD, 4 tons, uphill in 4th.

 

[ATex7239]

I would run a good 0W-20 and call it good.

But a 0W-8 will not kill the engine, it's not like it's lugging 4WD, 4 tons, uphill in 4th.

How is this meek oil supposed to handle the monstrous powerhouse that is the internal combustion engine of the legendary Prius? It’s madness, I tell you!

 

[dbvettez061]

Well. I plan on 5000 Mobil 1 oil changes. With Toyota’s track record, I find it hard to believe that they don’t know what they’re doing. Just never seen new oil so dark.

 

[DirectRejection]

See my threads !!!
It's the same engine.
Do not baby this engine.
Weekly Italian tuneup at least.
~400k miles and counting on
M20A-FXS
M20A-FKS
series engines.

 

[JavierH19]

Well. I plan on 5000 Mobil 1 oil changes. With Toyota’s track record, I find it hard to believe that they don’t know what they’re doing. Just never seen new oil so dark.

Walmart has been carrying mobil 1 0w-8 for a while now, it's $28 a jug so not bad, get it from there. The dealer wants a premium for 0w-8 at the counter in comparison.

 

[JavierH19]

One of these days I might pour 0w-8 into either my old 03 or 05 and see what happens. But I haven't lost my mind yet.

 

[FZ1]

Purchased it 2 weeks ago , it’s not my aunts Prius. 200 hp , quiet , nice drive.
850 miles on it, will do an oil analysis now. The 0 x 8 is like water , obviously, but the new oil is very dark in color. There must be a lot of additives in this oil, Toyota oil, made by Mobil 1 …..

I like the 5k oci. I would try the 0w-16.

 

[ATex7239]

My favorite thing about 0w-8 being spec’d is now 0w-16 and 0w-20 are recommendations from BITOGERS.

 

[2005jettatdi]

I fail to understand why a Prius, a car supposedly built for efficiency, needs a 200 HP engine.

 

[kschachn]

My favorite thing about 0w-8 being spec’d is now 0w-16 and 0w-20 are recommendations from BITOGERS.

Because as should be noted, it's not a spec, it is a recommendation. Other oils can be used.

 

[dbvettez061]

I fail to understand why a Prius, a car supposedly built for efficiency, needs a 200 HP engine.

Welcome to the new and better made vehicles. Hell of a nice car to drive.

 

[dogememe]

I fail to understand why a Prius, a car supposedly built for efficiency, needs a 200 HP engine.

What do you mean? You need enough power to make the car able to merge on the highway, pass, and go up hills at highway speeds even when packed with people and stuff. It already gets like 50MPG. Making it slower and getting 55MPG is just going to make people not want to buy it.

 

[dbvettez061]

I’m averaging 62 mpg. And not driving with an egg on the go pedal.

 

[Patman]

I fail to understand why a Prius, a car supposedly built for efficiency, needs a 200 HP engine.

If I can have 200 hp and 70 MPG that is a win win right there. My Civic only has 164 hp and gets 50 MPG average

 

[lovcom]

I fail to understand why a Prius, a car supposedly built for efficiency, needs a 200 HP engine.

...and yet, it's more efficient than the prior gens...its obvious why they need 200HP: acceleration. Toyota wants to rid the notion that Prius is slow, and not fun.

 

[ATex7239]

I like my vehicles to be slow and inefficient. Just like back in the good ol’ days. If I can pump more smog into the air while I do it - bonus points.

 

[STMech]

I fail to understand why a Prius, a car supposedly built for efficiency, needs a 200 HP engine.

Does the 200 HP spec include the battery powered motor generator?