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Will 0w40 be good for next winter? #5446913 06/05/20 01:21 PM
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mahanddeem Offline OP
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Hello,
I have an engine that calls for 5w30 (year around) and 10w30(manual calls it preferable) in Mexico weather.
Due to various reasons out of the scope of this topic, would 0w40 a good oil for a year round oil in this application? excuse my noobness here but I assume 0w40 would include the viscosity range of the 5w30 oil.

Here's the oil recommendation from the factory service manual
[Linked Image from i.ibb.co]

Reason also I have 2 of these engines and hating to stash 2 different viscosities. I wanted to change my system to 0w40 instead of the 5w30

Thanks

Last edited by mahanddeem; 06/05/20 01:24 PM.

2009 Nissan Maxima
2011 Nissan Maxima
2004 Honda Odyssey
Re: Will 0w40 be good for next winter? [Re: mahanddeem] #5446917 06/05/20 01:25 PM
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blufeb95 Online Content
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Should be fine, for example the Diesel Chevy Colorado manual calls for 5w-30 in most cases but recommends 0w-40 if you live in a very cold climate, 0w40 should be fine, most of them start out as a thin 40 and sheer to a thicker 30 by the end of the OCI but have some benefits in cold pumpability.

Re: Will 0w40 be good for next winter? [Re: mahanddeem] #5446922 06/05/20 01:28 PM
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kschachn Offline
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That chart does not show "viscosity range", it shows temperature range. A 0W-40 oil would not have the same viscosity range as a 5W-30. They are two different grades.

If you want to run a 40-grade oil then there's no reason not to use the 0W-40 considering it would likely carry a plethora of manufacturer approvals.


1994 BMW 530i, 253K
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Re: Will 0w40 be good for next winter? [Re: mahanddeem] #5446927 06/05/20 01:34 PM
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wings&wheels Offline
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I would think you would be completely fine, but have you considered a good 5w-40? Maryland isn't that cold. What is the vehicle BTW?

I could be accused of overthinking this, but when I use a modern synthetic in older engines, I tend to not go lower then the lowest cold rating and no higher than the highest...I use a lot of Mobil1 5w-50 grin


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Re: Will 0w40 be good for next winter? [Re: mahanddeem] #5446928 06/05/20 01:36 PM
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ka9mnx Offline
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Do you have a real reason not to use 5w-30?


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Re: Will 0w40 be good for next winter? [Re: kschachn] #5446930 06/05/20 01:37 PM
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77Se7en Offline
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mahandeem
Not sure why you failed to mention your engine. But I've used 0w40 in my Colorado during the winter. It's an engine 3.5 that calls for 5w30 and my local area sees temps the same, or colder than Maryland

Last edited by Triple_Se7en; 06/05/20 01:39 PM.

Spiritual Intuitive / Whisperer-Medium (Involuntary & Non-Profit)
Valvoline ME, Mobil-1 EP & Pennzoil Ultra Platinum 5w30s








Re: Will 0w40 be good for next winter? [Re: 77Se7en] #5446940 06/05/20 01:44 PM
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mahanddeem Offline OP
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Originally Posted by Triple_Se7en
mahandeem
Not sure why you failed to mention your engine. But I've used 0w40 in my Colorado during the winter. It's an engine 3.5 that calls for 5w30 and my local area sees temps the same, or colder than Maryland


Lol liked the (..failed to mention..) part. Sorry my bad. It's a Nisssan 3.5L VQ35DE engine.

Last edited by mahanddeem; 06/05/20 01:46 PM.

2009 Nissan Maxima
2011 Nissan Maxima
2004 Honda Odyssey
Re: Will 0w40 be good for next winter? [Re: mahanddeem] #5446946 06/05/20 01:49 PM
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77Se7en Offline
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If that's my vehicle and is still under warranty - plus the owners manual includes 0w40, then I'd use it. If not, then I'd wait for the warranty to expire - then use the 0w40.

One can horse around more with different viscosities after the warranty. I'm currently trying a thick 0w20 in my 04' Colorado and she seems fine with it.

Last edited by Triple_Se7en; 06/05/20 01:51 PM.

Spiritual Intuitive / Whisperer-Medium (Involuntary & Non-Profit)
Valvoline ME, Mobil-1 EP & Pennzoil Ultra Platinum 5w30s








Re: Will 0w40 be good for next winter? [Re: kschachn] #5446963 06/05/20 02:10 PM
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dave1251 Offline
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Originally Posted by kschachn
That chart does not show "viscosity range", it shows temperature range. A 0W-40 oil would not have the same viscosity range as a 5W-30. They are two different grades.

If you want to run a 40-grade oil then there's no reason not to use the 0W-40 considering it would likely carry a plethora of manufacturer approvals.



I agree 100% and you beat me to the punch.


make the inside of your engine oil cap white.
don't use.
Re: Will 0w40 be good for next winter? [Re: dave1251] #5447006 06/05/20 03:11 PM
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I run M1 0W-40 in all my cars and pickup year round. They all turn over quick in cold weather, and no consumption in any vehicle. I switched to it because it is easy and cheap to find at Wally's, and then I only stock one oil. As far as a 40 goes, my dad used 10W-40 as long as I can remember( I am 62) and all his cars and pickups from the 60's onward went well over 200,000 miles and died from rust, not worn engines.


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Re: Will 0w40 be good for next winter? [Re: 77Se7en] #5447207 06/05/20 08:17 PM
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Originally Posted by Triple_Se7en
If that's my vehicle and is still under warranty - plus the owners manual includes 0w40, then I'd use it. If not, then I'd wait for the warranty to expire - then use the 0w40.

One can horse around more with different viscosities after the warranty. I'm currently trying a thick 0w20 in my 04' Colorado and she seems fine with it.


What "thick" 0W-20? They all look about the same to me for the ones I've researched.


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Re: Will 0w40 be good for next winter? [Re: ka9mnx] #5447241 06/05/20 08:59 PM
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Leo99 Offline
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Originally Posted by ka9mnx
Do you have a real reason not to use 5w-30?


It's a theme on here. Some folks just think something other than what's recommended by the manufacturer is better.


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


2004 Corolla 125,000 miles
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Re: Will 0w40 be good for next winter? [Re: Leo99] #5447262 06/05/20 09:20 PM
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bbhero Online Content
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Originally Posted by Leo99
Originally Posted by ka9mnx
Do you have a real reason not to use 5w-30?


It's a theme on here. Some folks just think something other than what's recommended by the manufacturer is better.



Remeber not all manufacturer oil recommendations have always been right or the best.

How's your back feeling ??

Hope your back does not get to hurting...


Nissan Altima 3.5 Coupe
Royal Purple 10w30+ Ceratec+ Carquest red 85358
"Treat your family like your friends and treat your friends like your family."
Re: Will 0w40 be good for next winter? [Re: bbhero] #5447276 06/05/20 09:45 PM
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Originally Posted by bbhero
Originally Posted by Leo99
Originally Posted by ka9mnx
Do you have a real reason not to use 5w-30?


It's a theme on here. Some folks just think something other than what's recommended by the manufacturer is better.



Remeber not all manufacturer oil recommendations have always been right or the best.

How's your back feeling ??

Hope your back does not get to hurting...


Thanks. Icing it now.

I know not every recommendation is the best but it's usually good enough. I've read enough anecdotal reports to come to the conclusion that it just doesn't matter what grade of oil is used as long as it's close to the recommended grade and meets the specs. Even then I'm not so sure it matters.


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: Will 0w40 be good for next winter? [Re: Leo99] #5447278 06/05/20 09:48 PM
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bbhero Online Content
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Yeah that's true what you said here...

Does heat help with your back ??

Or alternating heat and cold ??


Nissan Altima 3.5 Coupe
Royal Purple 10w30+ Ceratec+ Carquest red 85358
"Treat your family like your friends and treat your friends like your family."
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