5W-30 for hot climates? 0W-20 for cold climates?

[127.0.0.1]

the oil pump is variable
the oil is used as hydraulic fluid for actuating VVT

regions have different ECU programming for 0-20 where 0-20 is specified
programming is different where 5-30 is specified

imho use what your manual says to use

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[The_Dark_Knight_Forever]

If 5W-30 is used as the standard oil in other parts of the world, it obviously was designed for it.

How do you know that everything about that engine, the supporting components & the software programming is EXACTLY the same from country to country. The same parts numbers are not enough proof that it's the same exact engine & such.

 

[The_Dark_Knight_Forever]

the oil pump is variable
the oil is used as hydraulic fluid for actuating VVT

regions have different ECU programming for 0-20 where 0-20 is specified
programming is different where 5-30 is specified

imho use what your manual says to use

 

[NotApplicable]

T24A-FTS was definitely designed with 0W-20 in mind given that even in the UAE, the Prado is factory filled with 0W-20. That said, they allow higher viscosities despite defaulting to 0W-20. The idea that it's a US-only phenomenon is false.

 

[The_Dark_Knight_Forever]

T24A-FTS was definitely designed with 0W-20 in mind given that even in the UAE, the Prado is factory filled with 0W-20. That said, they allow higher viscosities despite defaulting to 0W-20. The idea that it's a US-only phenomenon is false.

 

[Desmolicious]

regions have different ECU programming for 0-20 where 0-20 is specified

So say live in Alasaka and that is where you bought your 4Runner. But then you move to Phoenix, Arizona taking your bought in Alaska 4Runner with you.

Are you going to go to your friendly Phoenix Toyota dealership and ask for the hot climate ECU programming? What do you think their reaction will be?

 

[127.0.0.1]

So say live in Alasaka and that is where you bought your 4Runner. But then you move to Phoenix, Arizona taking your bought in Alaska 4Runner with you.

Are you going to go to your friendly Phoenix Toyota dealership and ask for the hot climate ECU programming? What do you think their reaction will be?

your post makes no sense whatsoever
but still no, Toyota can't convert a US spec
vehicle to GCC

 

[Desmolicious]

your post makes no sense whatsoever
but still no, Toyota can't convert a US spec
vehicle to GCC

How does it make no sense? If the ECU programming is different depending on regions, that would mean it needs to be changed if you change regions.

If it does not need to be changed, then why have different programming? Remember the discussion is about oil viscosity and oil pumps being variable.

 

[NotApplicable]

How does it make no sense? If the ECU programming is different depending on regions, that would mean it needs to be changed if you change regions.

If it does not need to be changed, then why have different programming? Remember the discussion is about oil viscosity and oil pumps being variable.

I do find the suggestion that the ECU must be programmed to a specific viscosity to be suspect, given the aforementioned Prado using this engine in the UAE allows for multiple viscosity options, including 0W-20. If it’s so sensitive that it only works with 0W-20 in the US, how is it able to handle multiple options elsewhere without reprogramming!

That said, I don’t see a reason to run anything other than 0W-20 myself. But I live in the PNW, not Phoenix. Though I grew up there!

 

[Nodak]

going 5-30 vs 0-30, the only difference is about 9F for cold weather.

for an example...

Pour point however is -42 for the Mobil 1 5w30 and -50 for the 0w30.

 

[127.0.0.1]

I do find the suggestion that the ECU must be programmed to a specific viscosity to be suspect, given the aforementioned Prado using this engine in the UAE allows for multiple viscosity options, including 0W-20. If it’s so sensitive that it only works with 0W-20 in the US, how is it able to handle multiple options elsewhere without reprogramming!

That said, I don’t see a reason to run anything other than 0W-20 myself. But I live in the PNW, not Phoenix. Though I grew up there!

it works if you deviate but it is not ideal. ideal conditions have been worked out by engineers and if you have a regional specification it should be followed if you want
to try to get the most life out of your engine

and though some of this regional difference is programming, such as oil pump settings and pressure settings for VVT...note Toyota can't make any changes to a vehicle built for a region and just change regions it doesn't work that way. it's not changeable by the manufacturer they'd be violating specific agreements to sell in [region xyz]. once that VIN gets placed in a vehicle, as far as Toyota is concerned, it's forever going to be that spec.

you want the longest life out of your 0-20 specified motor, don't start using 5-30 or some other weight thinking you are outsmarting the engineers. no, you aren't. just change the oil more often

 

[Desmolicious]

and though some of this regional difference is programming, such as oil pump settings and pressure settings for VVT...note Toyota can't make any changes to a vehicle built for a region and just change regions it doesn't work that way. it's not changeable by the manufacturer they'd be violating specific agreements to sell in [region xyz]. once that VIN gets placed in a vehicle, as far as Toyota is concerned, it's forever going to be that spec.

if this was the case please explain how a 4Runner sold in Alaska or Minnesota where temps can drop to -40 have the same ‘regional programming’ as a 4Runner sold in Arizona where temps can hit +120?

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