5w-20 Oil

[PetersRedYaris]

Originally Posted by YarisSedan

i think royal purple is fully synthetic as well amsoil. Mobil one and some of the cheaper ones are just refined organic oils to the point where they can call it synthetic. But its not fully synthetic. Which is why amsoil oil is supose to be good for 25k miles garenteed.

Uhhh, ALL oils are organic...

But yes, I agree AMS is far better, though maybe not for almost twice the money.

[Ace]

Originally Posted by deerebilt

my 08 sedan has the 1NZ-FE engine i dont see that engine listed on tsb there is a nz and a 1nz-fe series unless out motor is considered a NZ series. my oil cap and om says 5w-30

http://en.wikipedia.org/wiki/Toyota_NZ_engine

[suiller]

hi all... I have a new yaris (model 09) 1.33 dual VVTi (101cv), on this new engine can only used "genuine" toyota oil 0w20... but on next oil change I'll probably change it with a Bardahl Oil 5w30, that is, in my personal opinion, the best oil almost comparable with royal purple one

I used that oil successfully on all my previous cars (& also 4 my family) & it's noticeable a lower fuel consumption + an higher spin range (about +500rpm more), of course always dressed with ZX1 additive to protect our beloved engine :)

bye,
davide

[1stToyota]

Originally Posted by SilverGlow

You are very, very confused. The reason toyota does that has NOTHING to do with 0w and 5w. The reason is the differences in additive packages. For example, I would not put any 0w-20 in my Yaris, however I would put in AMSoil 0w-20 and Mobil1 0w-20, but not others.

It's about the additive packages, and not the viscosity. Now as time goes on, more 0w-20 brands will be good for the Yaris, but today not all.

Link?
Show me where Toyota says do NOT use 0w-20 because of additive packages, but use 5w-20 and 5w-30 for the Yaris (1NZ-FE) because their additive packages pown 0w-20's...all I see in Toyota's TSB is that they will allow 5w-20 but NOT 0w-20 in the Yaris motor, and there have never been little footnotes about *additive packages* as far as I can tell, plus you've ALWAYS stated that the TSB states 5w-20 is okay, so "with that being said 0w-20 is okay because it performs exactly like 5w-20" without ever mentioning certain additive packages in certain oil brands being the deciding factor.

And why would you use Amsoil 0w-20? It's not API approved...hmmmm...but the Amsoil XL 5w-20 is API approved ...bet that's another reason why the Toyota TSB says yes to 5w-20 and no to 0w-20. Bottom line: Until the TSB says yes to 0w-20 it's wrong to use it, but keep using it year round in southern California.

You must wake up in a new world every day. How many times have you claimed that brand doesn't matter, that the cheapest discount synthetic will make an engine last just as long as an expensive synthetic, like Royal Purple? I'm not the one that's confused; I use API certified oil, and the proper viscosity, you don't.

[suiller]

anyway the right additive doesn't touch original oil properties... so it's ok to use an oil additive also on a 0w20 oil, & with modern engines (dual vvti etc...) it's not un-usual to see a very "light" oil like a 5w20/30 or 0w20/30

I have a 0w20 oil on board & added the ZX1 additive without having any issues

[1stToyota]

Originally Posted by suiller

anyway the right additive doesn't touch original oil properties... so it's ok to use an oil additive also on a 0w20 oil, & with modern engines (dual vvti etc...) it's not un-usual to see a very "light" oil like a 5w20/30 or 0w20/30

I have a 0w20 oil on board & added the ZX1 additive without having any issues

All I know is that Toyota wants API certification and lists two viscosities for the Yaris 1NZ-FE, here in the US: 5w-20 and 5w-30, period!

Using anything else is somebody using what they want, not what Toyota wants. My concerns are just for the 1NZ-FE in the US market.

[suiller]

I agree... but API certs say all & nothing... just as ISO spec... anyway in my experience also on newer engines a balanced & of course good oil (for ex a 5w30/40) can't break anything

here (italy) on extremely efficient 1NR-FE (almost identical to 1NZ-FE) many plp take out the toyota oil & put instead the bardahl one (5w30)... toyota genuine oil is just a "name" to sell "their" oil at doubled price ;)

I don't take care about warranty, I'm just waiting to pass 1000km (about 600miles?) to make that change too :)

ps: of course I'm speaking about stock engines

[1stToyota]

Originally Posted by suiller

I agree... but API certs say all & nothing... just as ISO spec... anyway in my experience also on newer engines a balanced & of course good oil (for ex a 5w30/40) can't break anything

here (italy) on extremely efficient 1NR-FE (almost identical to 1NZ-FE) many plp take out the toyota oil & put instead the bardahl one (5w30)... toyota genuine oil is just a "name" to sell "their" oil at doubled price ;)

I don't take care about warranty, I'm just waiting to pass 1000km (about 600miles?) to make that change too :)

ps: of course I'm speaking about stock engines

A lot of people probably do care about warranties, and the best way to void a warranty here in the US would be to use a non-API approved oil, and a viscosity that Toyota says not to use in their TSB, owner's manual, service manual, etc...most people here probably don't use the Toyota genuine oil either.

[SilverGlow]

Originally Posted by 1stToyota

Link?
Show me where Toyota says do NOT use 0w-20 because of additive packages, but use 5w-20 and 5w-30 for the Yaris (1NZ-FE) because their additive packages pown 0w-20's...all I see in Toyota's TSB is that they will allow 5w-20 but NOT 0w-20 in the Yaris motor, and there have never been little footnotes about *additive packages* as far as I can tell, plus you've ALWAYS stated that the TSB states 5w-20 is okay, so "with that being said 0w-20 is okay because it performs exactly like 5w-20" without ever mentioning certain additive packages in certain oil brands being the deciding factor.

And why would you use Amsoil 0w-20? It's not API approved...hmmmm...but the Amsoil XL 5w-20 is API approved ...bet that's another reason why the Toyota TSB says yes to 5w-20 and no to 0w-20. Bottom line: Until the TSB says yes to 0w-20 it's wrong to use it, but keep using it year round in southern California.

You must wake up in a new world every day. How many times have you claimed that brand doesn't matter, that the cheapest discount synthetic will make an engine last just as long as an expensive synthetic, like Royal Purple? I'm not the one that's confused; I use API certified oil, and the proper viscosity, you don't.

You want a link? Go to AMSoil's web site. Go to Mobil1's website. You can run BOTH 0w-20's in your Yaris with absolute confidence. So why theirs and not others 0w-20?

ADDITIVE PACKAGE.

For example, this is why SL grade 5w-30 can be run in car X but not car Y, yet BOTH cars call for 5w-30, but not ANY 5w-30.

So if two oils are 5w-30 yet only one can be run in car X, why?

ADDITIVE PACKAGE differences.

There are cars out there that call for a particular brand of 5w-30 or 5w-20 or 0w-20 because not any brand will do even if the viscosity range is perfect....why? Additive package differences, again.

[SilverGlow]

Originally Posted by 1stToyota

Link?
You must wake up in a new world every day. How many times have you claimed that brand doesn't matter, that the cheapest discount synthetic will make an engine last just as long as an expensive synthetic, like Royal Purple? I'm not the one that's confused; I use API certified oil, and the proper viscosity, you don't.

I've said it many times and I will say it again: BRAND DOES NOT MATTER.

However this thread is about 0w-20 vs. 5w-20. In regard to this particular and specific issue, brand does in fact matter because not all brands provide the appropriate additive packages required by certain cars.

Now if one wants to use oils found in their manuals/TSBs (5w-20, 5w-30) in their Yaris then as long as the oil is either made by AMSoil or is API-SM certified, then BRAND DOES NOT MATTER.

For example, when I run 5w30 or 5w-20 the brand of the synthetic does not matter. But for 0w-20 the only brands I will use are Mobile1 and AMSoil. This is the EXCEPTION, and not the rule.

Hope this clarifies.

[1stToyota]

Originally Posted by SilverGlow

You want a link?

Don't backup now...you said Toyota will allow 5w-20 but not all 0w-20's because of an additive package issue. LOL!

Go to AMSoil's web site.

To find a non API approved listing? No.

Go to Mobil1's website.

To see them disagree with Toyota's TSB? No.

You can run BOTH 0w-20's in your Yaris with absolute confidence.

Wrong. Not listed as approved by Toyota, AMSOIL 0w-20 is not API certified.

So why theirs and not others 0w-20?

Why you but not Toyota?

ADDITIVE PACKAGE.

For example, this is why SL grade 5w-30 can be run in car X but not car Y, yet BOTH cars call for 5w-30, but not ANY 5w-30.

ANY car that calls for SL 5w-30 can run ANY brand of SL 5w-30.

So if two oils are 5w-30 yet only one can be run in car X, why?

If Toyota says 5w-20 for your Y than why do you run 0w-20 when their TSB says it's only for their X?

ADDITIVE PACKAGE differences.

There are cars out there that call for a particular brand of 5w-30 or 5w-20 or 0w-20 because not any brand will do even if the viscosity range is perfect....why? Additive package differences, again.

Right back to you saying that Toyota's TSB allows particular brands of 0w-20 because of those special non API approved additive packages...again...proof? Or just your need and not Toyota's need, again?

[1stToyota]

Originally Posted by SilverGlow

I've said it many times and I will say it again: BRAND DOES NOT MATTER.

However this thread is about 0w-20 vs. 5w-20. In regard to this particular and specific issue, brand does in fact matter because not all brands provide the appropriate additive packages required by certain cars.

Now if one wants to use oils found in their manuals/TSBs (5w-20, 5w-30) in their Yaris then as long as the oil is either made by AMSoil or is API-SM certified, then BRAND DOES NOT MATTER.

For example, when I run 5w30 or 5w-20 the brand of the synthetic does not matter. But for 0w-20 the only brands I will use are Mobile1 and AMSoil. This is the EXCEPTION, and not the rule.

Hope this clarifies.

It does

I've never seen you make viscosity distinctions until now, when I called you on it.

And they have to have the appropriate additive packages to even produce a 0w-20 viscosity, fyi.

And as in certain cars, our 1NZ-FE Yaris? Still haven't seen where Toyota lists 0w-20 for it yet.

And, again, stick to that lose/lose formula of:
1) Use an Amsoil grade that isn't API approved
2) Use a viscosity that isn't listed on Toyota's TSB

[craigq]

Here, Toyota Japan website showing that 0W20 is okay for the 1NZFE: Toyota Japan Website

You might have to click "refresh" if it doesn't show up the first time.

Why they didn't state 0W20 is okay for the 1NZFE in that TSB is beyond me, probably so arguments like this could be started on the Internet...

20wt is 20wt, it's going to be from 5.60-9.29 cSt, regardless if the first number is 0W or 5W.

I don't even know why I bothered posting, watching you two fight over oil viscosity is much more entertaining...

[rningonfumes]

Originally Posted by craigq

I don't even know why I bothered posting, watching you two fight over oil viscosity is much more entertaining...

Shhhh!!! lol

[deerebilt]

I USE TOYOTA 5W30 OIL SINCE NEW AND ITS THE SAME PRICE AS AUTO PARTS STORES MOBIL CLEAN 5000 5W30 OIL ALSO AT 21000 MI MY OVERALL AVG MPG IS 43.5. I AM CONSIDERING CHANGING TO TOYOTA 5W20 TO SEE IF I CAN GET MORE MPG AND WATCH SCANGUAGE II FOR READING CHANGES. I AM NOT SOLD ON ANYBODYS SYNTHETIC OIL AND DEFINITELY NOT EXTENDING OIL CHANGE INTERVALS. UNDER NORMAL COMBUSTION YOU ENGINE GETS DIRTY AND BY EXTENDING OIL CHANGES THAT TRASH IS RUN THRU YOU MOTOR.

[GeneralDon7]

I switched to the 5W20 Mobil 1 extended at about 15,000 and noticed a 4-6 mpg increase after the switch, and havent noticed any metal shavings, or performance issues.

[1stToyota]

Originally Posted by craigq

Here, Toyota Japan website showing that 0W20 is okay for the 1NZFE: Toyota Japan Website

You might have to click "refresh" if it doesn't show up the first time.

Why they didn't state 0W20 is okay for the 1NZFE in that TSB is beyond me, probably so arguments like this could be started on the Internet...

20wt is 20wt, it's going to be from 5.60-9.29 cSt, regardless if the first number is 0W or 5W.

I don't even know why I bothered posting, watching you two fight over oil viscosity is much more entertaining...

If I lived in Japan, that's what I'd use. In the US we're given 2 choices by Toyota: 5w-20 and 5w-30
What the Toyota TSB and the owner's manual says is an approved viscosity for the US is what matters, but certain people just know better than Toyota when it comes to what'll work best.

And I guess 0w-20 and 5w-20 isn't the same, or the Toyota TSB would allow both for our 1NZ-FE, but they don't...and funny that Amsoil's 5w-20 is API certified, but their 0w-20 isn't.

[nerp]

I'd never use an oil that isn't explicitly appoved by Toyota for use. Using some oil that isn't approved would be stupid, imho. I didn't engineer this car or the engine. And I don't care how much experience I have with cars, engines and oil. Until I've been designing Yaris engines, I understand that my limited experience doesn't give my any qualification to dump whatever oil I want into the engine.