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#4777828 - 06/05/18 02:00 AM 0W-20 for Texas winters/summers good?
crazy_raccoon Online   content


Registered: 08/26/17
Posts: 90
Loc: USA
I'm currently located in central Texas and been trying to figure which oils are good for our vehicles (read signature) year round or if I should switch due to the seasons. Most of the topics just talk about using a particular oil year round due to their climate but I'm Texas it can be bipolar [censored]. Some winters it can get in the single digits (rarely) and easily triple digits in the summer. I'm currently deployed and plan on doing UOAs for our vehicles when I get back to get a better feel.
_________________________
'07 Scion tc
- 98K miles
- Valvoline FS w/ML 0W-20 D1G2
- FRAM Ultra
'07 Honda Accord coupe 4cyl
- 128K miles
- Valvoline FS w/ML 0W-20 D1G2
- FRAM TG

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#4777834 - 06/05/18 02:32 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
gfh77665 Offline


Registered: 09/01/08
Posts: 3847
Loc: Southeast Texas
Nothing bad will happen with 0w-20, but it's not optimal in TX. Since you are out of warranty, at least use a 5w-20, or better yet, a 5w-30. In TX the "0" will never benefit you.

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#4777848 - 06/05/18 04:41 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
demarpaint Offline


Registered: 07/03/05
Posts: 30150
Loc: NY
Originally Posted By: crazy_raccoon
I'm currently located in central Texas and been trying to figure which oils are good for our vehicles (read signature) year round or if I should switch due to the seasons. Most of the topics just talk about using a particular oil year round due to their climate but I'm Texas it can be bipolar [censored]. Some winters it can get in the single digits (rarely) and easily triple digits in the summer. I'm currently deployed and plan on doing UOAs for our vehicles when I get back to get a better feel.


I agree with the poster above me, I'd run a 5W30 year round. Thanks for your service!
_________________________
God Bless Our Troops


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#4777853 - 06/05/18 04:51 AM Re: 0W-20 for Texas winters/summers good? [Re: gfh77665]
crazy_raccoon Online   content


Registered: 08/26/17
Posts: 90
Loc: USA
Originally Posted By: gfh77665
Nothing bad will happen with 0w-20, but it's not optimal in TX. Since you are out of warranty, at least use a 5w-20, or better yet, a 5w-30. In TX the "0" will never benefit you.


I think our cars benefited a little when we used 0W-20 on long road trips. I noticed a significant improvement in gas mileage on highway runs, smoother idle and of course faster warm up/flow times in the winter season vs using 5W. I just hope it didn't shear or at least have better protection during last summer in NC before I moved back to TX.
_________________________
'07 Scion tc
- 98K miles
- Valvoline FS w/ML 0W-20 D1G2
- FRAM Ultra
'07 Honda Accord coupe 4cyl
- 128K miles
- Valvoline FS w/ML 0W-20 D1G2
- FRAM TG

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#4777857 - 06/05/18 04:55 AM Re: 0W-20 for Texas winters/summers good? [Re: demarpaint]
crazy_raccoon Online   content


Registered: 08/26/17
Posts: 90
Loc: USA
Originally Posted By: demarpaint
Originally Posted By: crazy_raccoon
I'm currently located in central Texas and been trying to figure which oils are good for our vehicles (read signature) year round or if I should switch due to the seasons. Most of the topics just talk about using a particular oil year round due to their climate but I'm Texas it can be bipolar [censored]. Some winters it can get in the single digits (rarely) and easily triple digits in the summer. I'm currently deployed and plan on doing UOAs for our vehicles when I get back to get a better feel.


I agree with the poster above me, I'd run a 5W30 year round. Thanks for your service!


You're welcome and I appreciate your support. The 2AZ-FE motors from Toyota area a funky one and the CAFE regulations didn't make it better. Before '07 they are speed for 5W-30. After that like mine currently with upped compression and oil squirters, they are speed for 5/0W-20.
_________________________
'07 Scion tc
- 98K miles
- Valvoline FS w/ML 0W-20 D1G2
- FRAM Ultra
'07 Honda Accord coupe 4cyl
- 128K miles
- Valvoline FS w/ML 0W-20 D1G2
- FRAM TG

Top
#4777861 - 06/05/18 05:23 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
SilverFusion2010 Offline


Registered: 06/29/11
Posts: 1688
Loc: Crawfordville FL
5 or 10w-30
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4777863 - 06/05/18 05:29 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
demarpaint Offline


Registered: 07/03/05
Posts: 30150
Loc: NY
Originally Posted By: crazy_raccoon
Originally Posted By: demarpaint
Originally Posted By: crazy_raccoon
I'm currently located in central Texas and been trying to figure which oils are good for our vehicles (read signature) year round or if I should switch due to the seasons. Most of the topics just talk about using a particular oil year round due to their climate but I'm Texas it can be bipolar [censored]. Some winters it can get in the single digits (rarely) and easily triple digits in the summer. I'm currently deployed and plan on doing UOAs for our vehicles when I get back to get a better feel.


I agree with the poster above me, I'd run a 5W30 year round. Thanks for your service!


You're welcome and I appreciate your support. The 2AZ-FE motors from Toyota area a funky one and the CAFE regulations didn't make it better. Before '07 they are speed for 5W-30. After that like mine currently with upped compression and oil squirters, they are speed for 5/0W-20.


Yes they made some tweaks. I still think in your climate a 30 grade oil is a better choice. Opinions are going to vary, that's mine.

After a lot of research, and speaking with experts about the topic a 30 grade oil was the winner. I changed two of my 5W20 spec'd vehicles to 5W30 with no regrets. NY winters are much colder and NY summers certainly not as hot as a Texas summer. Both vehicles are doing great.
_________________________
God Bless Our Troops


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#4777864 - 06/05/18 05:31 AM Re: 0W-20 for Texas winters/summers good? [Re: SilverFusion2010]
Trav Offline


Registered: 11/20/06
Posts: 19633
Loc: MA, Mittelfranken.de
+1 10w30 synthetic like PP, it usually has lower NOACK which is desirable in high temp environments. 10w30 is not thick oil and will flow and protect well in any temps you encounter year round in TX.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

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#4777866 - 06/05/18 05:40 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
Zee09 Offline


Registered: 05/05/18
Posts: 630
Loc: Tri State Conservative
I agree with demarpaint!
_________________________
"If I walked on water, they'd say I couldn't swim."

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#4777868 - 06/05/18 05:42 AM Re: 0W-20 for Texas winters/summers good? [Re: Zee09]
bbhero Offline


Registered: 03/20/15
Posts: 4813
Loc: Virginia
Me too +2

And you are up way too early Zee09 LOL
_________________________
Nissan Altima 3.5 Coupe
Quaker State High Mileage 5w30 Purolator Boss 14610
"Treat your family like your friends and treat your friends like your family."

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#4777877 - 06/05/18 06:16 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
toneydoc Offline


Registered: 12/16/11
Posts: 1720
Loc: War Eagle
I like Trav's choice for the Texas climate
_________________________
1994 Jeep 159k Mobil 5000 5w30
2014 Camry 34k QS AD 5w30
2018 Jeep Cherokee 2k factory fill
2014 HD Ultra 40k Mobil1 15w50
2012 Rav4 36k PP 5w20

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#4777879 - 06/05/18 06:20 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
Snagglefoot Offline


Registered: 12/31/17
Posts: 2058
Loc: SE British Columbia, Canada
Interesting things about climate. Most engines have large enough cooling systems to keep their engine at the same temp regardless of ambient temperature. At 100 F driving in Houston, my engine temp was 210 F. At -30 F up in Edmonton, it was at 210 F. Except for the cold starting issue, climate is not that big of an issue. Folks with oil temp gauges have shown the variations in oil temperature are not huge regardless of ambient temp. If you have a marginal cooling system or plugged up rad, itís another issue. But I would go far enough to run 5w30 year round instead of 0w20.
Now for 40 weight Aussies to chime in.


Edited by Snagglefoot (06/05/18 06:34 AM)

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#4777893 - 06/05/18 06:57 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
Dallas69 Offline


Registered: 02/11/14
Posts: 1704
Loc: Texas
Originally Posted By: crazy_raccoon
Originally Posted By: gfh77665
Nothing bad will happen with 0w-20, but it's not optimal in TX. Since you are out of warranty, at least use a 5w-20, or better yet, a 5w-30. In TX the "0" will never benefit you.


I think our cars benefited a little when we used 0W-20 on long road trips. I noticed a significant improvement in gas mileage on highway runs, smoother idle and of course faster warm up/flow times in the winter season vs using 5W. I just hope it didn't shear or at least have better protection during last summer in NC before I moved back to TX.

You won't notice any difference between 0-20 and 5-20.
Not better mpg
Not faster warmup
Not smoother idle
If you're seeing those things then it's certainly not oil related.
I'm in N.TeX and use 5-20 in my wife's Galant year round and never any issue.
No need for different grades for the seasons. That's a Yankee or California thing it seems.
My .02
_________________________
2009 Galant-ultra oil and filter
1987 Ford F-150 302
Smittys 5-30
Motorcraft filter

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#4777896 - 06/05/18 07:02 AM Re: 0W-20 for Texas winters/summers good? [Re: Snagglefoot]
Dallas69 Offline


Registered: 02/11/14
Posts: 1704
Loc: Texas
Originally Posted By: Snagglefoot
Interesting things about climate. Most engines have large enough cooling systems to keep their engine at the same temp regardless of ambient temperature. At 100 F driving in Houston, my engine temp was 210 F. At -30 F up in Edmonton, it was at 210 F. Except for the cold starting issue, climate is not that big of an issue. Folks with oil temp gauges have shown the variations in oil temperature are not huge regardless of ambient temp. If you have a marginal cooling system or plugged up rad, itís another issue. But I would go far enough to run 5w30 year round instead of 0w20.
Now for 40 weight Aussies to chime in.

If outside temp doesn't matter then why do they put heat range on the oil selection chart?
_________________________
2009 Galant-ultra oil and filter
1987 Ford F-150 302
Smittys 5-30
Motorcraft filter

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#4777902 - 06/05/18 07:07 AM Re: 0W-20 for Texas winters/summers good? [Re: crazy_raccoon]
wemay Online   happy


Registered: 04/04/12
Posts: 9136
Loc: Miami Florida
OP,

In a healthy engine, 0w20, 5w30, 5w20 or 10w30 will all work just fine. This is really a personal choice since you will undoubtedly notice no benefits or detrimental effects with any of them. This includes MPG and total miles achieved.
_________________________
'18 KIA Sportage LX AWD (Magnatec 5w30)
'13 Hyundai Santa Fe 2.0T (VFS 5w30)

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