5w-30

[GSPHerder]

Who's using 5w-30. Lots agree that 0-20 is for CAFE standards or EPA BS. I believe in 0-20 as much as I believe in 10k oil changes.

Any of you guys running 5w-30? Have you done an oil analysis?
Getting ready to do my first oil change at 1k, then switch to 5w-30 pending real world reasons not too?

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[Will721]

Most agree it won't hurt simply because outside of the U.S. 5w-30 is apparently the standard for these engines. However, reguardless of whether it's bad for the engine or not I personally wouldn't make the switch until the warranty is up. You are guaranteed to void the warranty doing that.

 

[izzy]

I would but warranty

I'd rather not give Toyota any reason to deny the warranty repair if the T24A spins a bearing or something.

In all honesty I'd probably run 5w40 if not for warranty... Toyota didn't perform any magic that makes the T24A need 0w20, we're just test subjects trying to meet EPA targets.

I've not gone further than 4k on a change of 0w20, just doesn't feel right.

 

[GSPHerder]

I understand you guys reasoning and appreciate, I however don't trust the manufacture to be honest with us no matter the long term consequences to owners post 60k.

My reasoning is, even a ford can do 60k miles (most of the time). I'm more concerned with after the 60k because generally speaking it goes pretty fast. So even if you didn't void warranties by using 0-20 until 60k my question mostly is what are we sacrificing post 60k. Oil analysis's would help to decide.

Some have reported oil dilution with fuel with analysis using 0-20 which dilutes the viscosity even more.

I'll do the switch and post oil analysis's. Wish me luck.

 

[Last One]

My 2014 Tacoma did 236k on 0-20w oil so I will stay with that on my 2026.

 

[Sner]

motor is engineered for 0W20. Not sure why there’s so many hell bent against it. Oil technologies have changed, engine technologies of changed, why apply old school thoughts, just change oil regularly, a video from a couple weeks ago,

 

[izzy]

motor is engineered for 0W20

Except the same engine is specced for 10w30 in hot climate markets? Most of California could run 10w30 without issue, low temp wise.

 

[Sner]

Except the same engine is specced for 10w30 in hot climate markets? Most of California could run 10w30 without issue, low temp wise.

Watch the video.

 

[GSPHerder]

motor is engineered for 0W20. Not sure why there’s so many hell bent against it. Oil technologies have changed, engine technologies of changed, why apply old school thoughts, just change oil regularly, a video from a couple weeks ago,

if you agree that 0-20 is how it was engineered. How do your reconcile that any where else Toyota recommends 30w. 0-20 works but it’s thin, then throw some fuel into it as shown in oil analysis’s and its even thinner.

same reason Toyota puts 3.5 ratio‘s in their Tacoma “trucks”. And 3.3 ratios in their tundras. For gas mileage, plain and simple! Same “technology” that overheats transmission when you put your off-road truck in 4hi.

Im not trying to convert anyone but was wondering if anyone has ran some analysis with a 30w

 

[Sner]

if you agree that 0-20 is how it was engineered. How do your reconcile that any where else Toyota recommends 30w. 0-20 works but it’s thin, then throw some fuel into it as shown in oil analysis’s and its even thinner.

Im not trying to convert anyone but was wondering if anyone has ran some analysis with a 30w

If you watch the video it does a good job of explaining

 

[BLtheP]

motor is engineered for 0W20. Not sure why there’s so many hell bent against it. Oil technologies have changed, engine technologies of changed, why apply old school thoughts, just change oil regularly, a video from a couple weeks ago,

There is no such thing as “engineered for 0W-20.” If one oil works, so will a slightly thicker oil. What is ironic about the statement that engines are “engineered for” 0W-20 is that plenty of engines are actually tested and designed on thicker oil and then they ship them a grade lower because of CAFE/economy reasons. The 3UR-FE was one of those. Same for 1GR-FE and then one year all of a sudden 20 grade was recommended. Jeep did it with the 3.8L & 3.6L. Do we really think the testing being done on one grade and then subbing in a lower grade last minute is truly what is best for the consumer?

The video you linked does nothing to explain anything either. It was a bunch of his opinion that essentially if a problem is gonna happen, it’s gonna happen regardless of oil viscosity (despite that not being proven - a thicker oil could have likely provided enough protection to prevent the wear that may have started on 0W-20). That is the gist of what he said and he offered no actual proof of anything other than to beg people to follow the owners manual with no actual reasons of why to do so. He gave no proof of anything and then ended it on “do you want to find out? I don’t” which still says nothing.

People are against 0W-20 because it comes at a time in the car world where literally every design decision made weighs fuel economy as part of the decision. It is very clear that the manufacturers are up against it with the EPA requirements and they have to do all sorts of things to comply. There is no reason to even begin to trust that the owner’s manual recommended viscosity is actually what’s best for the owner. It is all about what complies best for EPA regulations.

 

[BLtheP]

if you agree that 0-20 is how it was engineered. How do your reconcile that any where else Toyota recommends 30w. 0-20 works but it’s thin, then throw some fuel into it as shown in oil analysis’s and its even thinner.

same reason Toyota puts 3.5 ratio‘s in their Tacoma “trucks”. And 3.3 ratios in their tundras. For gas mileage, plain and simple! Same “technology” that overheats transmission when you put your off-road truck in 4hi.

Im not trying to convert anyone but was wondering if anyone has ran some analysis with a 30w

What exactly are you looking for? I’m not on 0W-20 but I can’t give you any observable differences. My V6 quieted down significantly when I switched it to thicker viscosity but I can’t say I noticed any real difference with the T24A. It is just a clattery motor in general. Still, I think long term things will be better off with the change. I’m on 5W-40 euro.

 

[GSPHerder]

I did weeks ago, exact video. He lost me at “this video isn’t for people who do oil analysis and nerds, this is for everyday people”. (paraphrasing)

 

[izzy]

I’m on 5W-40 euro

My 2013 WRX hatch only gets 5w40

It's a proper thick oil for turbo vehicles.

There is no such thing as “engineered for 0W-20.” If one oil works, so will a slightly thicker oil. What is ironic about the statement that engines are “engineered for” 0W-20 is that plenty of engines are actually tested and designed on thicker oil and then they ship them a grade lower because of CAFE/economy reasons. The 3UR-FE was one of those. Same for 1GR-FE and then one year all of a sudden 20 grade was recommended. Jeep did it with the 3.6L. Do we really think the testing being done on one grade and then subbing in a lower grade last minute is truly what is best for the consumer?



The video you linked does nothing to explain anything either. It was a bunch of his opinion that essentially if a problem is gonna happen, it’s gonna happen regardless of oil viscosity (despite that not being proven - a thicker oil could have likely provided enough protection to prevent the wear that may have started on 0W-20). That is the gist of what he said and he offered no actual proof of anything other than to beg people to follow the owners manual with no actual reasons of why to do so. He gave no proof of anything and then ended it on “do you want to find out? I don’t” which still says nothing.



People are against 0W-20 because it comes at a time in the car world where literally every design decision made weighs fuel economy as part of the decision. It is very clear that the manufacturers are up against it with the EPA requirements and they have to do all sorts of things to comply. There is no reason to even begin to trust that the owner’s manual recommended viscosity is actually what’s best for the owner. It is all about what complies best for EPA regulations.

Preach brother

 

[GSPHerder]

What exactly are you looking for? I’m not on 0W-20 but I can’t give you any observable differences. My V6 quieted down significantly when I switched it to thicker viscosity but I can’t say I noticed any real difference with the T24A. It is just a clattery motor in general. Still, I think long term things will be better off with the change. I’m on 5W-40 euro.

Yeah good question. I’m thinking that 0-20 sacrifices protection especially when diluted. So I’m thinking a 5-30 would provide better protection even with some fuel dilution. So wondering if anyone has switched and if they have an oil analysis to verify??

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