Can 0w20 handle high RPMs

[y_p_w]

Originally Posted by ekpolk
The cars also "self-protect" to some degree by, in effect, pre-oiling themselves. I have the advantage of having had a ScanGauge installed installed on the dash, pretty much since I first started driving them, so I can see the actual rpms. If you watch, you can see the rpms start to spin up a couple eyeblinks before the computer adds fuel and spark. Don't try watching while driving!

This allegedly helps the engines withstand the huge number of start-stop cycles they endure compared to "normal" cars, and maybe helps with cold starts too.

Isn't time to operating temperature aided by the insulated coolant reservoir? Sounds possibly more effective than having a block heater.

 

[PimTac]

Originally Posted by ekpolk
Originally Posted by y_p_w
...

The other odd thing is that some neighbors have Toyota hybrids, and they seem to floor them too going up the hill where it's buzzing rather than going straight off the battery. I was under the impression that they typically work off of the electric side as it warms up the ICE from a cold start, but will rev if the demand for available power is exceeded.


That sounds about right. All three Toyota hybrids I've driven, the old Prius, the Camry and the new Prius responded similarly. The computer "wants" to warm the ICE (oooo, there's a pun...) as quickly as it can by running it at low rpms, 12-15-hundred or so. If you demand more by stepping on it, it will definitely give, but you'll notice it draws disproportionately from the battery and use the electric motors if it can, though it will bring up the ICE rpms too, but "with reluctance." It creates an interesting effect as you get a disproportionate increase in torque from the electric motors, compared to the usual balance. It doesn't morph the car into a Corvette, but I like the feel of it.

The cars also "self-protect" to some degree by, in effect, pre-oiling themselves. I have the advantage of having had a ScanGauge installed installed on the dash, pretty much since I first started driving them, so I can see the actual rpms. If you watch, you can see the rpms start to spin up a couple eyeblinks before the computer adds fuel and spark. Don't try watching while driving!

This allegedly helps the engines withstand the huge number of start-stop cycles they endure compared to "normal" cars, and maybe helps with cold starts too.




Very interesting. Thanks for sharing this. The engineers at Toyota thought of everything.

 

[Patman]

Originally Posted by y_p_w


Besides, these days the majority of emissions tests aren't even direct tailpipe tests. The last few I had were just plugged into the OBD-II port and analyzed based on onboard data. The biggest worry would really be passing the visual check.


In Ontario, our original emissions test (which didn't need to be done on cars that were about 5 years old or newer) was a tailpipe sniffer test. Then a few years ago they changed it so that if your car didn't have a check engine light on, it would pass the test. And now, starting on April 1st, they completely scrapped the program, so no emissions testing needs to be done at all (the logic here is that the program was a waste of time because a very small number of cars were failing the test)

 

[Triple_Se7en]

Originally Posted by y_p_w
Originally Posted by Bryanccfshr
Like Castrol's Magnetec.

I'm not even sure what the current version is called. Was it Edge? I'm still just Mobil 1 0W-40 (or 5W-30) for my WRX and whatever the cheapest 5W-20 I can find for my wife's Civic. Currently Mobil Super (and it's been a while since the last change because it wasn't running for 8 months) but now there's a jug of Chevron Supreme waiting to go in.




Speaking of Chevron and 5w30, another option is a thin HDEO that I found here and made by Chevron (Delo). Seems suitable for gasoline direct injects and turbos. What's different is it's very limited additive ingredients.
I will go on a search for the XLE, in coming weeks. Thanks to member Subie for the info below.

https://www.bobistheoilguy.com/foru...0/chevron-delo-xle-10w30-voa#Post4981530

 

[ekpolk]

Originally Posted by y_p_w
...
Isn't time to operating temperature aided by the insulated coolant reservoir? Sounds possibly more effective than having a block heater.


It was - but that feature went away after the "Gen-2" cars (09-09 models). Now the same effect is achieved using exhaust heat. The SG shows the coolant heating up VERY quickly. The latter is an improvement, I assume, but I haven't had time to delve into the merits. I do sort of miss the effects from the 04. On start, you could watch the coolant temp spiking up as the stored hot coolant was pumped in. After shutdown, you could hear it pumping 3L from the system back into the so-called "thermos." No merit in it -- just cool to hear...

 

[ka9mnx]

Originally Posted by Patman

And now, starting on April 1st, they completely scrapped the program, so no emissions testing needs to be done at all (the logic here is that the program was a waste of time because a very small number of cars were failing the test)

Hmm. I thought emission testing was more about taking in revenue. Seems that way in the U.S. When I lived in Arizona (1980) I had to test my 1970 Pinto and 1958 Ford before I could get it registered.. I paid the $10 and both failed. They said don't bother re-testing the Ford because it's too old for testing (though I had to keep the official "failed" papers in the car). They showed me on the back of the failed Pinto form a list of things I could do to try all and pass on the re-test. So I put in spark plugs, points and air filter and set the dwell, timing and adjusted the carburator. I took all the receipts and wrote down what I had done for the re-test. The Pinto failed again (I had removed the pollution stuff since there was no visual inspection). They said ok just keep the paperwork with the car.

 

[CR94]

Originally Posted by ekpolk
... All three Toyota hybrids I've driven, the old Prius, the Camry and the new Prius responded similarly. The computer "wants" to warm the ICE (oooo, there's a pun...) as quickly as it can by running it at low rpms, 12-15-hundred or so. If you demand more by stepping on it, it will definitely give, but you'll notice it draws disproportionately from the battery and use the electric motors if it can, though it will bring up the ICE rpms too, but "with reluctance." ...
You had the 2nd and 4th-generation Prius. On my 3rd-generation, the stage in which it relies primarily on the battery (if not pushed hard) lasts exactly one minute after start-up. Meanwhile, the engine is steadily running with very light load at 1280 RPM, regardless of car speed. If the car is not moving when the one minute is up, the engine stops---unless you're asking for cabin heat.

Like you and your neighbors, I have to climb a hill almost immediately. Unlike them, I normally wait the minute for the engine to be willing to work before tackling the hill.

 

[ChemLabNL]

Originally Posted by PimTac
Originally Posted by ChemLabNL
I would be surprised if the new Toyota Dynamic Force engines (0w16) didn't start burning oil before 50K miles.
It would be interesting to know the Moly content of Toyota 0w16.





Nonsense.


True..."Surprised" might not be the right word. English is my second language.

 

[DirectRejection]

In the Ecoboost test, Ford stated that
they used identical additive packages
for both the 5W30 and the 0W16 oils.

Yet, it is known,
as we crawl towards GF-6,
that oils 0W16 and thinner
require optimized additive packages.

It is certainly noteworthy
to learn that Stop/Start wear
is a big hurdle,
along with timing chain wear.

Slap some moly in there,
would ya ?

 

[PimTac]

Originally Posted by Direct_Rejection
In the Ecoboost test, Ford stated that
they used identical additive packages
for both the 5W30 and the 0W16 oils.

Yet, it is known,
as we crawl towards GF-6,
that oils 0W16 and thinner
require optimized additive packages.

It is certainly noteworthy
to learn that Stop/Start wear
is a big hurdle,
along with timing chain wear.

Slap some moly in there,
would ya ?




What will the moly do?

 

[DirectRejection]

Originally Posted by PimTac
Originally Posted by Direct_Rejection
In the Ecoboost test, Ford stated that
they used identical additive packages
for both the 5W30 and the 0W16 oils.

Yet, it is known,
as we crawl towards GF-6,
that oils 0W16 and thinner
require optimized additive packages.

It is certainly noteworthy
to learn that Stop/Start wear
is a big hurdle,
along with timing chain wear.

Slap some moly in there,
would ya ?




What will the moly do?


Make up, somewhat, for the lack of viscosity.

I noted quite a while ago that
Ravenol 0W16
has over 200 ppm of moly,
while
Mobil 1 0W20
has maybe 100 ppm moly.

Both are confirmed to be trimer moly.