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#4663728 - 02/12/18 10:22 AM Toyota and 0w-20
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Been curious about this for a while now. My wife's Toyota Sienna requires 0w-20, but the book says you can use 5w-20 in an emergency, but must change back to 0w-20 next OCI. Other than cold start properties and higher PAO in 0w-20, why would using a 5w-20 vs 0w-20 in California be a problem. For the record, not planning on switching away from 0w-20. What is it with 5w-20 vs 0w-20? Just curious. Thanks.


Edited by mbacfp (02/12/18 10:23 AM)
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4663738 - 02/12/18 10:28 AM Re: Toyota and 0w-20 [Re: mbacfp]
Speak2Mountain Offline


Registered: 04/07/17
Posts: 346
Loc: Mississippi
I switched over to a 5w in my wife's Sienna. We're in the sunny south so 5w oil would be better now that we're approach 150K.
I'll be honest, we used 0w Toyota oil for years, no problems yet I see 0 (zero) discernible differences in mpg, smoothness, quietness, and seat of pants horsepower.

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#4663742 - 02/12/18 10:31 AM Re: Toyota and 0w-20 [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Thanks for the info. Speak2Mountain. Might use my stash of 5w-20 for Sienna if I ever sell my car early. Curious if Toyota knows something we don't on 5w vs 0w. Appreciate it.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4663746 - 02/12/18 10:33 AM Re: Toyota and 0w-20 [Re: mbacfp]
CELICA_XX Offline


Registered: 11/28/08
Posts: 861
Loc: Oklahoma
I believe the 0w-20 requirement is because they are encouraging a synthetic oil.

I think a 5w-20 synthetic would also be fine.
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02 Toyota ECHO - Valv MaxLife Full Syn 5w30
97 Lexus LX450 - M1 0w40
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#4663749 - 02/12/18 10:35 AM Re: Toyota and 0w-20 [Re: mbacfp]
supton Offline


Registered: 11/09/08
Posts: 11924
Loc: NH
At engine temp, 5W20 and 0W20 should be the same thing. Only matters as temps head south.

I thought the 5W20 could be made from conventional oil, while 0W20 basically "forces" the oil maker into a synthetic? As in, in order to hit the specs, it has to qualify as a synthetic.
_________________________
2011 Toyota Camry, base, 2.5L/6MT, 160k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 143k, ours
1999 Toyota Camry LE, 2.2L/4AT, 181k, his

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#4663764 - 02/12/18 10:44 AM Re: Toyota and 0w-20 [Re: mbacfp]
mbacfp Offline


Registered: 09/02/15
Posts: 837
Loc: California
Might be the PAO % for their 1 year 10,000 OCI with 0w-20. Good point supton.
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4663784 - 02/12/18 10:57 AM Re: Toyota and 0w-20 [Re: supton]
Astro14 Offline


Registered: 10/10/10
Posts: 8533
Loc: Virginia Beach
Originally Posted By: supton
At engine temp, 5W20 and 0W20 should be the same thing. Only matters as temps head south.

I thought the 5W20 could be made from conventional oil, while 0W20 basically "forces" the oil maker into a synthetic? As in, in order to hit the specs, it has to qualify as a synthetic.


Thatís what I thought, too...
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32 Packard 15W40
02 Volvo V70 T5 0W40 M1
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#4663786 - 02/12/18 10:57 AM Re: Toyota and 0w-20 [Re: supton]
The Critic Online   crying


Registered: 08/30/04
Posts: 19797
Loc: CA
Originally Posted By: supton
At engine temp, 5W20 and 0W20 should be the same thing. Only matters as temps head south.

I thought the 5W20 could be made from conventional oil, while 0W20 basically "forces" the oil maker into a synthetic? As in, in order to hit the specs, it has to qualify as a synthetic.


There are many synthetic blend 0w20 oils on the market. CP/76 makes a bunch of them. Pennzoil makes a 0w20 in their gold line as well.


Edited by The Critic (02/12/18 10:58 AM)
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2011 Toyota Prius - 168k - ServicePro Dexos 0W-20
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#4663808 - 02/12/18 11:13 AM Re: Toyota and 0w-20 [Re: mbacfp]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 18156
Loc: Dallas,Tx USA
I've noticed by looking at product data sheets that 0W20's are a little bit thicker at operating temperatures than 5W20's.
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1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4663818 - 02/12/18 11:19 AM Re: Toyota and 0w-20 [Re: mbacfp]
andyd Offline


Registered: 09/25/04
Posts: 7139
Loc: Marshfield , MA
If the 0w20 delivers the barest bit of MPG gain, that is reason enough. I get that, but are there oil pressure dependent variable valve timing widgets or chain guides that require such a thin oil? I drank the Toyota coolaid, simply by noticing what my extended family drives. I'm a motor head, but I'm blissfully ignorant of the workings of the side wise 4 banger, wrong wheel drive appliance. Does it really have electric steering? When I changed the hot oil, the watery stuff didn't give me the warm fuzzies that a 10w or a 20w does.
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

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#4663847 - 02/12/18 11:48 AM Re: Toyota and 0w-20 [Re: andyd]
fsskier Offline


Registered: 07/22/08
Posts: 824
Loc: Iowa
Agreed: If it delivers even slightly better mileage than its worth it! My 2008 Sienna has now completed 160,000 miles with the exclusive use of 0W20 Mobil 1. As the Sienna is a "constant tow vehicle for a commercial operation, towing well above its factory recommendation, it seems that the 0W20 offers excellent protection against wear. The oil still reads full when I change at 10,000 mile intervals.....seems like new.....so I certainly will continue.
Oh, and it was -10 f this morning.....dang the engine spins like summertime when you hit the starter!

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#4663883 - 02/12/18 12:26 PM Re: Toyota and 0w-20 [Re: mbacfp]
OVERKILL Offline


Registered: 04/28/08
Posts: 36431
Loc: Ontario, Canada
Toyota's 0w-20 does not have any appreciable amount of PAO in it according to the MSDS (at least the Mobil version). It's predominantly Group III:

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#4663911 - 02/12/18 01:03 PM Re: Toyota and 0w-20 [Re: fsskier]
AZjeff Offline


Registered: 01/14/11
Posts: 2632
Loc: PV Az
Originally Posted By: fsskier
My 2008 Sienna has now completed 160,000 miles with the exclusive use of 0W20 Mobil 1. As the Sienna is a "constant tow vehicle for a commercial operation, towing well above its factory recommendation, it seems that the 0W20 offers excellent protection against wear. The oil still reads full when I change at 10,000 mile intervals.....seems like new.....so I certainly will continue.


There must be some mistake... that watery oil can't possibly do that!
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86 Samurai 1.3 leftovers
14 RAV4 2.5 5W-20 PP *gasp*
16 Silverado 1500 4.3 Ecotec3, DI, AFM 5W-30 PP

Why know when you can guess?!


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#4664046 - 02/12/18 03:37 PM Re: Toyota and 0w-20 [Re: andyd]
Bryanccfshr Offline


Registered: 10/09/04
Posts: 5716
Loc: Durango, Co
Originally Posted By: andyd
If the 0w20 delivers the barest bit of MPG gain, that is reason enough. I get that, but are there oil pressure dependent variable valve timing widgets or chain guides that require such a thin oil? I drank the Toyota coolaid, simply by noticing what my extended family drives. I'm a motor head, but I'm blissfully ignorant of the workings of the side wise 4 banger, wrong wheel drive appliance. Does it really have electric steering? When I changed the hot oil, the watery stuff didn't give me the warm fuzzies that a 10w or a 20w does.


The same engines in other countries(except us and Canada) but including Puerto Rico still use a temperature chart for oil viscosity recommendations.
The engine will operate fine at a wide range of viscosities. Hydraulic pressure operated timing controls and that is tolerant.
That being said you can not go wrong running 0w20 all the time. Or 0w40 or 5w30.as long as it is appropriate for the service.
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2018 Trd Pro 4Runner M1 0w40
2018 Tacoma off-road Castrol 5w30 Magnatec

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#4664093 - 02/12/18 04:32 PM Re: Toyota and 0w-20 [Re: mbacfp]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3396
Loc: Columbus,Nebraska
WHY??? would you use a 5W-20 when you can use a 0W-20???

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