Mobil 1 0W-8

Sure. I did not write they don't or do.
Look engine manufacturers spend millions every year on each engine they design testing everything. Oil off course. Why should one doubt that a 0W-8 is appropriate? Then again the service manuals and user manuals do state that we can go all the way up to even 5W-30. Imho I think we should keep to the recommended. Hybrids run mostly cooler than most other cars. If one uses it to race around then perhaps would be better to go into a higher grade. What I read all the time is this rhetoric about w8 being like water.
Run you car on the highway at 130 for about a hour. Then stop and check the oil. If that's not viscous enough I don't know.
What do you do to check viscosity? Run between fingers or lick the dipstick?
 
You said it yourself. It’s recommended.

You can go all the way up to any SAE grade. You can use a 70-grade if you wish as long as the winter rating is appropriate for the starting temperature.
That is BS. Carry doing that on modern engines where an w8 is recommended.
 
Thin oil reaches everywhere very quickly and remains in the piston rings longer and in the tiny lubricating ring holes..

I am just the guy in the Internet.

Reaches the sump quickly but stays longer in the pistons rings....

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How do you think ein normal.mechanic without a lab and 99.9% have not a lab, vhe k if your oil is OK? We can all be very very paranoid about it or very objective. Off course I put in my lips. I even use it as a lubricante for sexual activities.. ;)l)

My God. W8 is an oil which has cost many years of research. I don't believe they would just put in their engines, and tells us to use it. Toyota still are very flexible with their oil advice. Vom 8 to 40 in some cases.

In honesty, I am also worried about the water type oil.

Is it really all about saving fuel? First fill with a very expensive to produce oil grade on all toyota gas /petrol engines, first for the Japanese needs then worldwide? Knowing that it will eventually damage engines?

Or is it about engines with much tighter tolerances which run cooler as their predecessors? Which are more efficient and rhus einvironmental friendly.?

All strange. Don't you agree? I stick to 0W-8. It is stated on the service manuals. So, I use it.

by the way. Thin oil reaches everywhere very quickly and remains in the piston rings longer and in the tiny lubricating ring holes..

I am just the guy in the Internet.
I am a proponent of thinner oil, and would use the 0W8 oil if I had one of those very nice cars, which is why it pains me to tell you that almost every sentence you have written above is wrong.
 
Uh oh! No 40 listed though. 30 is the new 40 and 20 is the new 30.
At least it's possible to have a high hths with 30 grade. But realistically if I had something that ran on 1.8 hths oil at minimum a high quality 0w-20 with euro approvals like edge EP, edge euro, esp x2, and some others would be fine with me. But without those euro certifications tested for better than required wear protection in a cheaper oil like supetech or kirkland I'd use 5w-30 instead which are very likely thin 30's at 2.9-3.1 hths and not do extended drains.
 
Weird... my last UOA had my 0W-40 at 13.2cSt, well within the xW-40 range.

But how does shear turn an oil into a grade that doesn't exist? It's like saying all Traction AA tires wear so fast they end up as turbomuffencapsulators.
Yes the nonsense in this thread is thick and getting thicker.

And Leon’s getting larger 🙂
 
Yes the nonsense in this thread is thick and getting thicker.

And Leon’s getting larger 🙂

I think the joke went above both of your heads
:sneaky:

I Always keep the engine running during oil changes in winter.

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And when my 0W40 stay out of grade has sheared thin I add some flex seal to get viscosity back.

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