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

[The_Dark_Knight_Forever]

The viscosity argument is debatable to an extent. The 10,000 mile oil change interval is marketing. Never wait until 10,000 miles to change oil…

I think 10k oil changes can be legitimate but ONLY with the best of the best oils AND when the vehicle is being operated ONLY under ideal or “normal” driving conditions (which a vast majority of vehicles don't operate within). Would I personally try it? A resounding hell no.

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[DannyvanDelft]

I think 10k oil changes can be legitimate but ONLY with the best of the best oils AND when the vehicle is being operated ONLY under ideal or “normal” driving conditions (which a vast majority of vehicles don't operate within). Would I personally try it? A resounding hell no.

Yes, Toyota makes recommendations only for the best of conditions for oil they don't use. Because they love wasting money on replacing engines under warranty

 

[DannyvanDelft]

The viscosity argument is debatable to an extent. The 10,000 mile oil change interval is marketing. Never wait until 10,000 miles to change oil…

Another logical assumption. Toyota would rather replace thousands of engines under warranty because of "marketing". What does Toyota have to gain by writing 10,000 miles in their manual instead of 5,000?

 

[Four Runner]

Governments and regulators have pushed automakers to increase oil change intervals to reduce waste of new oil and reduce the environmental impact of disposal and recycling of used oil.

Looks more like an environmental issue than an engine longevity issue.

Will keep my oil changes at 5k miles.

 

[6thGen1419]

The viscosity argument is debatable to an extent. The 10,000 mile oil change interval is marketing. Never wait until 10,000 miles to change oil…

Of course, I agree. Just curious about selectively trusting Toyota.

 

[NotApplicable]

Another logical assumption. Toyota would rather replace thousands of engines under warranty because of "marketing". What does Toyota have to gain by writing 10,000 miles in their manual instead of 5,000?

At 10k OCIs, the warranty only covers 3.6 OCIs. Toyota could tell us all to use non-synthetic and not have to worry about warranty claims. So their oil advise is not being driven by limiting warranty claims.

Advice to use lower OCIs and do a couple early oil changes during the break-in period is driven by a durability argument that will take many times the warranty period to show up.

In any case, it’s weird to be so worked up about people doing 1-2 early oil changes in the first 5k miles and then moving to a relatively standard 5k OCI. By all means, don’t do this — I’m sure you’ll make it through the 36k warranty no problem. But don’t disparage us for making incredibly minute time and financial sacrifices to do a couple more oil changes when the literal only possible outcome of that decision is to have cleaner oil with less contaminants in the vehicle at all times.

 

[127.0.0.1]

At 10k OCIs, the warranty only covers 3.6 OCIs. Toyota could tell us all to use non-synthetic and not have to worry about warranty claims. So their oil advise is not being driven by limiting warranty claims.

Advice to use lower OCIs and do a couple early oil changes during the break-in period is driven by a durability argument that will take many times the warranty period to show up.

In any case, it’s weird to be so worked up about people doing 1-2 early oil changes in the first 5k miles and then moving to a relatively standard 5k OCI. By all means, don’t do this — I’m sure you’ll make it through the 36k warranty no problem. But don’t disparage us for making incredibly minute time and financial sacrifices to do a couple more oil changes when the literal only possible outcome of that decision is to have cleaner oil with less contaminants in the vehicle at all times.

I got a VSA good for 120,000 miles, for under $1500....you think Toyota is interested
in swapping my engine out before 120,000 miles for $1500 bucks ? it's gonna be fine at 10,000 mile changes.... and if not, they'll fix whatever broke.

however, I am doing 5000 mile changes on my own.

 

[Desmolicious]

This is the comparison video using oil analysis comparison before 10k miles and after. The content created was the oil specialist for Joe Gibbs racing and is a certified lubrication expert. After 10k miles, 5w-30 shows higher metal content in the oil analysis results. It may not be that 5w-30 is better, only that 0w-20 is not available in other markets around the world. In the US, we have the best of the best available at all times. It may be that we are only offered the best choice and other markets are offered what is available.

In the US, we have the best of the best available at all times

Don't read the ingredients of what you are eating vs the exact same product made by the same mfgs for overseas markets...

 

[AdFour]

Why do people trust Toyota about the oil viscosity and at the same time not trust Toyota about frequency of oil changes?

Risk of changing oil at half interval = Near 0. DIY cost $40 2-3 times a year.
Risk of trusting Toyota interval = potentially huge $$ loss
Therefore, one can eat the cost out of abundance of caution. Can be proven out later one way or another with no down sides other than some time and low $.

Using OEM oil viscosity risk = Assume potential engine damage and $$ loss.
Changing oil viscosity = Assume potential engine damage and $$ loss. Adding new variable, changing engine intended operating conditions etc..
Therefore the burden of proof is on you to prove it one way or another, conclusively with data, not bro science. We don't know which one is right, so its a coin flip chose what you want to do.

See what happens when you stop using ChatGPT?

 

[Josalbrec6G]

Risk of changing oil at half interval = Near 0. DIY cost $40 2-3 times a year.
Risk of trusting Toyota interval = potentially huge $$ loss
Therefore, one can eat the cost out of abundance of caution. Can be proven out later one way or another with no down sides other than some time and low $.

Using OEM oil viscosity risk = Assume potential engine damage and $$ loss.
Changing oil viscosity = Assume potential engine damage and $$ loss. Adding new variable, changing engine intended operating conditions etc..
Therefore the burden of proof is on you to prove it one way or another, conclusively with data, not bro science. We don't know which one is right, so its a coin flip chose what you want to do.

See what happens when you stop using ChatGPT?

 

[AdFour]

Trust Toyota recommendations but don't trust Toyota recommendations. Got it.

Never said that, don't trust but verify which was the point of my entire post.

 

[Josalbrec6G]

Agreed!! I have changed my oil 4x already for break-in with 9200 miles. Plan on 3000-5000 oci

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