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Forget about warranty for this question #5424549 05/09/20 08:48 AM
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Char Baby Offline OP
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and PLEASE focus on the question itself. And no other questions about..."why would anyone want to do this"? or "what are you NUTS"? etc.

If an engine & owner's manual require ONLY 0W20 motor oil and no other optional oil grades listed in the OM, will using a 5W20 or 5W30 conventional(which are actually a synblend), hurt the engine for the occasional OCI?

OK, maybe don't run this OCI on dino 5W20 or 5W30 for the full length synthetic OCI(6k-8k miles) but maybe for 3k-4k miles?

This has been a question that has haunted me since there are so many newer vehicles/engines that require the 0W20 and NOTHING ELSE.


Thanks,

CB


Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Forget about warranty for this question [Re: Char Baby] #5424553 05/09/20 08:53 AM
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Leo99 Offline
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It's not going to matter but if you're worried and haunted just use the 0w20.

What engine requires 0w20 and nothing else?

Last edited by Leo99; 05/09/20 08:54 AM.

Without data you're just another person with an opinion. W. E. Deming


2004 Corolla 125,000 miles
2004 Rav4 399,852 miles (RIP)
2015 Camry 101,000 miles
2020 Rav4 6,000 miles
Re: Forget about warranty for this question [Re: Char Baby] #5424556 05/09/20 08:57 AM
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skyactiv Offline
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Your letting this bother you too much and hopefully your not hunting an answer you agree with. I could give you the nice member bitog answer but that wont do you any good.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 18' Elantra Sport 6 speed manual
The rude guy that points out reality


Re: Forget about warranty for this question [Re: Char Baby] #5424560 05/09/20 09:04 AM
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bullwinkle Offline
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In warm weather, sure-but if Rochester, NY suffers a late '70s style extreme subzero winter cold snap. maybe not. Might lose .01% MPGs, though! My personal opinion is that CAFE is driving most of these super-thin oil specifications anyway.


06 Ram 3500 CTD 4X4(FG Venturi), 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7 (MC), 03 Merc Grand Marquis 4.6 2V(XG2), 11 Express 3500 6.0 (Fram PH10060 for now)
Re: Forget about warranty for this question [Re: Char Baby] #5424566 05/09/20 09:13 AM
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2015_PSD Offline
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I would be skeptical that it would damage the engine; though there are some engines that have VVT/VCT that are sensitive to viscosity.

What is the intended outcome? Save money? Use an existing stash? You seem to be burning a lot of brain power over this.


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Castrol Edge + Ultra]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum + Mann filter]
Re: Forget about warranty for this question [Re: Leo99] #5424567 05/09/20 09:13 AM
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Char Baby Offline OP
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Originally Posted by Leo99
It's not going to matter but if you're worried and haunted just use the 0w20.

What engine requires 0w20 and nothing else?


I'm not haunted about using 0W20, I love it. It's great oil a good price. And I'm not saying that I am going to use 5W20/30 dino. It's just that the question has haunted me as it doesn't seem to be discussed.

As-far-as what engine or manufactures require 0W20? Honda, Mazda and others for example...in certain engines!


Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Forget about warranty for this question [Re: Char Baby] #5424584 05/09/20 09:29 AM
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CT8 Offline
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[quote=Char Baby]and PLEASE focus on the question itself. And no other questions about..."why would anyone want to do this"? or "what are you NUTS"? etc.

If an engine & owner's manual require ONLY 0W20 motor oil and no other optional oil grades listed in the OM, will using a 5W20 or 5W30 conventional(which are actually a synblend), hurt the engine for the occasional OCI?

OK, maybe don't run this OCI on dino 5W20 or 5W30 for the full length synthetic OCI(6k-8k miles) but maybe for 3k-4k miles?

This has been a question that has haunted me since there are so many newer vehicles/engines that require the 0W20 and NOTHING ELSE.


Thanks,

CB[/quotte] What do you thing would be hurt by using a 5W-30


2015 F150 2.7
2018 F350 6.2
Re: Forget about warranty for this question [Re: Char Baby] #5424589 05/09/20 09:34 AM
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ka9mnx Online Content
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No. I would use the oils in your question, in conventional, for 5k mile OCI.


2005 Ranger 3.0 - SuperTech Syn 0w-20/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Forget about warranty for this question [Re: Char Baby] #5424590 05/09/20 09:34 AM
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Chris142 Offline
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I would cut the oci back. If it calls for 10k on 0w20 syn I would cut it back to 5k on your blend. I do not have any evidence as to why I think this way.

Last edited by Chris142; 05/09/20 09:35 AM.

02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
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Can am Maveric edge 5w40
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Re: Forget about warranty for this question [Re: Char Baby] #5424600 05/09/20 09:41 AM
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NormanBuntz Offline
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Which year and model is the OP talking about? I don't know any domestic models that REQUIRE 0w-20 engine oil. Honda only RECOMMENDS 0w-20. It seems that it's mostly German cars that REQUIRE specific motor oils.

Personally in a temperate climate like NC and FL, where my vehicles are used, I use 5w-20 in my Camry and Ridgeline, even though the Ridgeline was back specced for 0w-20. I keep my intervals between 5K and 7K miles. Full syn and syn blend=yes. Dino=no.


Porgy Tirebiter: "Heavy on the 30 weight, Mom."
2017 Toyota Camry XLE, 12K, 2nd owner
2007 Honda Ridgeline RTS, 97K, original owner
2007 Infiniti M35, 115K, original owner
Re: Forget about warranty for this question [Re: CT8] #5424621 05/09/20 09:55 AM
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Char Baby Offline OP
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Originally Posted by NormanBuntz
Which year and model is the OP talking about? I don't know any domestic models that REQUIRE 0w-20 engine oil. It seems that it's mostly German cars that REQUIRE specific motor oils.


As mentioned, Honda Civic (in sig) & Mazda(most) and my buddy's '18 Equinox 1.5T. Maybe the Chevy allows for other grades but the other 2 do not in basic trim.

CB[/quotte] What do you thing would be hurt by using a 5W-30[/quote]

I couldn't imagin anything being hurt except warranty. But I am still just asking!

CB

Last edited by Char Baby; 05/09/20 09:58 AM.

Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Forget about warranty for this question [Re: 2015_PSD] #5424623 05/09/20 09:58 AM
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Originally Posted by 2015_PSD
I would be skeptical that it would damage the engine; though there are some engines that have VVT/VCT that are sensitive to viscosity.

What is the intended outcome? Save money? Use an existing stash? You seem to be burning a lot of brain power over this.

Brother if the VVT/VCT is this sensitive to 1 or 2 CST then this engine is complete junk and Char Baby needs a plan for buying a new vehicle because by Summer and the temperature change it will die in short order.


make the inside of your engine oil cap white.
don't use.
Re: Forget about warranty for this question [Re: Char Baby] #5424627 05/09/20 10:01 AM
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NormanBuntz Offline
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Originally Posted by Char Baby
Originally Posted by NormanBuntz
Which year and model is the OP talking about? I don't know any domestic models that REQUIRE 0w-20 engine oil. It seems that it's mostly German cars that REQUIRE specific motor oils.


As mentioned, Honda Civic (in sig) & Mazda(most) and my buddy's '18 Equinox 1.5T. Maybe the Chevy allows for other grades but the other 2 do not in basic trim.

CB[/quotte] What do you thing would be hurt by using a 5W-30


I couldn't imagin anything being hurt except warranty. But I am still just asking!

CB
[/quote]

I'm not trying to be argumentative, but the 2020 Honda Accord manual only RECOMMENDS 0w-20 engine oil.


Porgy Tirebiter: "Heavy on the 30 weight, Mom."
2017 Toyota Camry XLE, 12K, 2nd owner
2007 Honda Ridgeline RTS, 97K, original owner
2007 Infiniti M35, 115K, original owner
Re: Forget about warranty for this question [Re: Char Baby] #5424630 05/09/20 10:04 AM
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walterjay Offline
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I am not an engineer but in my opinion using a 5W-30 would probably cause no damage. For years I have exclusively run 5-30 in all of my engines that ask for 5W-20. I have also used 0W-30 in my F-150.
And I have found that 0W-40 seemed to work best in my Ford which "requires" 5-20

Last edited by walterjay; 05/09/20 10:06 AM.
Re: Forget about warranty for this question [Re: Char Baby] #5424632 05/09/20 10:06 AM
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HangFire Offline
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Unless the temps are below -20F, the 5w vs 0w won't matter a bit. Above that, the difference between oils would only amount to the same difference as starting the engine at, say, 40F vs 50F.

Modern Xw-30 weight oils are very light (except for a few botique oils) at standard running temps and very close to the Xw-20's. It is only at excessively high, abnormal temps would there be much of a difference... where a synthetic 30 would be slightly superior to a 20.

Some systems like VTEC depend on oil pressure to determine when to actuate. The difference in engine and oil temp matters more here than the oils weight, and long experience with enthusiasts trying different oils has shown that it really doesn't matter.


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