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Warming up to 5W20 for winter But 5w30 for summer #4574071
11/14/17 07:28 PM
11/14/17 07:28 PM
Joined: Oct 2010
Posts: 244
Nonya
Fallguy Offline OP
Fallguy  Offline OP
Joined: Oct 2010
Posts: 244
Nonya
My vehicle states 5w20 is the recommended oil but 5w30 is also acceptable.

Will run 0W20 for the winter, love the low MRV (9200 at -40C) and can get down to -15F where I live.

In summer thinking I will run 5W30.

Know 5w20 (0w20's) are stout oils, just cringe at running it on 100F days when summer rolls back around.
(using synthetic, M1 EP 0w20 currently).

Anyone else doing similar and swinging back an forth between viscosities. Maybe by summer I will just stay 0w20 (flip a coin I guess). Splitting hairs here but that is what we do here correct?

2017 pentastar 3.6L

Last edited by Fallguy; 11/14/17 07:28 PM.

"Yes I likely did a search already, I want more info".
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574080
11/14/17 07:33 PM
11/14/17 07:33 PM
Joined: Oct 2006
Posts: 1,534
Oshawa, Ont. Canada
irv Offline
irv  Offline
Joined: Oct 2006
Posts: 1,534
Oshawa, Ont. Canada
Originally Posted By: Fallguy
My vehicle states 5w20 is the recommended oil but 5w30 is also acceptable.

Will run 0W20 for the winter, love the low MRV (9200 at -40C) and can get down to -15F where I live.

In summer thinking I will run 5W30.

Know 5w20 (0w20's) are stout oils, just cringe at running it on 100F days when summer rolls back around.
(using synthetic, M1 EP 0w20 currently).

Anyone else doing similar and swinging back an forth between viscosities. Maybe by summer I will just stay 0w20 (flip a coin I guess). Splitting hairs here but that is what we do here correct?

2017 pentastar 3.6L


I run 5W-20 in my 13 Ram Hemi as that's what it calls for but I have considered 5W-30 in the summer also. My buddy, who's a mechanic says it's not a good idea. I am around an oil change a year as I only average 7-9,000 kms annually so I will just stick with the 5W-20 as it doesn't make much sense, money wise to do it.
Curious what others have to say however.


2017 Chevy Impala 3.6 L.
2013 Ram 5.7 L Hemi Bighorn QC 4x4
2008 Chevy Malibu 2.4 L Ecotec
Pennzoil Platinum and/or Pennzoil Ultra Platinum for all 3.
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574085
11/14/17 07:37 PM
11/14/17 07:37 PM
Joined: Jan 2009
Posts: 13,837
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,837
Illinois
I use 0-20 year round in Fords. Performs great in extreme cold and very high temps of summer. +100F.

Last edited by tig1; 11/14/17 07:37 PM.

2007 Ford Fusion 232,000 miles
M1 0-20 EP
2017 Ford Fusion 55K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters

Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574095
11/14/17 07:47 PM
11/14/17 07:47 PM
Joined: Dec 2011
Posts: 4,742
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,742
North Carolina
I never bought off on switching viscosity for summer/winter. There's a fair bit of overlap between grades.

Pick one and stick with it year round. If it's good enough at operating temp in winter, it'll be fine in summer.


"Zed's dead baby, Zed's dead."
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574098
11/14/17 07:48 PM
11/14/17 07:48 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
I'm old enough to remember when 5W-30 was the winter oil. grin2

Re: Warming up to 5W20 for winter But 5w30 for summer [Re: tig1] #4574103
11/14/17 07:54 PM
11/14/17 07:54 PM
Joined: Nov 2011
Posts: 4,857
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,857
MTL, CANADA
Originally Posted By: tig1
I use 0-20 year round in Fords. Performs great in extreme cold and very high temps of summer. +100F.


Agree +1


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967

Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574123
11/14/17 08:09 PM
11/14/17 08:09 PM
Joined: Sep 2009
Posts: 16,009
OH
fdcg27 Online content
fdcg27  Online Content
Joined: Sep 2009
Posts: 16,009
OH
If your oil changes break neatly between the cold months and the warm ones, then this might be a solid plan.
Certainly there's be no harm in it, but a 5W qualified oil is more than adequate for -15F.


17 Forester 12K MSS 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574138
11/14/17 08:20 PM
11/14/17 08:20 PM
Joined: Mar 2009
Posts: 2,624
Cedarbrae, Ontario
xxch4osxx Online content
xxch4osxx  Online Content
Joined: Mar 2009
Posts: 2,624
Cedarbrae, Ontario
I use Amsoil XL 5w20 in my Ram 5.7 year round.


2015 RAM SXT Crew Cab 5.7 with 6 speed tranny.

2008 Mazda 3 GS Sport Hatchback 5sp MT (Girlfriend's car)

Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574140
11/14/17 08:20 PM
11/14/17 08:20 PM
Joined: Oct 2014
Posts: 3,897
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,897
Utah
Think about how many owners are running "the manual specs" all year around and their trucks are not blowing up......

Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574141
11/14/17 08:22 PM
11/14/17 08:22 PM
Joined: Aug 2008
Posts: 18,456
Ontario, Canada
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 18,456
Ontario, Canada
My Dodge Journey runs 5w20 year round with oil temperatures of 250F. Beautiful UOA's and that is in a hard working 4 cylinder that does high rev's on the highway. No engine blown yet.


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574145
11/14/17 08:26 PM
11/14/17 08:26 PM
Joined: Jun 2004
Posts: 2,325
St. Louis
MONKEYMAN Offline
MONKEYMAN  Offline
Joined: Jun 2004
Posts: 2,325
St. Louis
I am considering that myself. I have lots of oil from my oil hoarding days. I changed from 5w-20 Valvoline Premium Conventional at dealership to some DYI 5w-30 Pennzoil Plantinum this summer when it was 102 degrees. I know the Pennzoil will be better with heat. It is interesting what my Hyundai manual says:

Quote:
Lower viscosity engine oils can provide better fuel
economy and cold weather performance, however, higher viscosity
engine oils are required for satisfactory lubrication in hot weather.


So 5w-20 for cold weather performance (not noticing a change in economy) and 5w-30 or 10w-30 in the summer is required if I want my car to have satisfactory lubrication in hot weather. That works for me. I mostly have conventional 5w-30 or 10w-30 oil in my stash once I use up the Pennzoil Plantinum. I have about 3 changes of 5w-20.


Truth alone triumphs, not untruth.

2017 Elantra SE
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574152
11/14/17 08:30 PM
11/14/17 08:30 PM
Joined: Aug 2013
Posts: 2,529
Central Maryland
HangFire Offline
HangFire  Offline
Joined: Aug 2013
Posts: 2,529
Central Maryland
Nothing wrong with 0w20 in the Winter and 5w30 in the Summer... I've ended up doing just that to use up some stocks of oil that otherwise wouldn't get used, put 0w20 in the 5w20 spec car in Winter, 5w30 in either the 0w20 spec or 5w20 spec car in Summer.

It probably doesn't make a bit of difference. Maybe it makes me BITOG-correct. Or, BITOG-incorrect. Maybe it puts me in touch with my ancestors who used straight 10W in the Winter (and only in the Winter). Maybe I'm getting .00001% better performance out of some vague parameter I can't measure. Maybe an oil weight within a range of correct weights is just plain good enough.


Various musings: http://hangfire.net
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574201
11/14/17 08:55 PM
11/14/17 08:55 PM
Joined: Aug 2017
Posts: 537
Nebraska
BJD78 Offline
BJD78  Offline
Joined: Aug 2017
Posts: 537
Nebraska
All 3 of our vehicles run 5w20 conventional year round with no issues. We make 1-2 trips every summer to LA in 95 to 110 degree heat running with the Sonata running AC full blast via 70 and i 15 no issues running 5w20. 5w20 seems more than adequate for extreme heat and putting on about 3k round trip. By the same token never any issues cranking in cold weather, though the last couple of winters in Lincoln have not been really severe... maybe a half dozen days below in the -5 to -10 range. Our owner manual says 5w20 so I go with that and no issues so far. Perhaps if i lived in the southern desert LA or palm springs I would benefit from running 5w30, but for an occasional trip to the desert once or twice a year I just stick with the manufacturers recommendation, they should know of what they speak as they test these engines in all weather conditions.


2010 Forester:122K
2009 Sonata :189K
2010 Tucson:55K

OCI 5K using the cheapest dino oil I can buy,usually NAPA or TSC Travelers oil.
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: Fallguy] #4574214
11/14/17 09:02 PM
11/14/17 09:02 PM
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,755
Crawfordville FL
It depends on the oil temp. 5w-20 is very stable oil. The 0w-20 have also proven themselves to be excellent lubricants.

I would run each for an oci and see what the car likes. Pick that one and stay with it


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
Re: Warming up to 5W20 for winter But 5w30 for summer [Re: MONKEYMAN] #4574248
11/14/17 09:26 PM
11/14/17 09:26 PM
Joined: Aug 2008
Posts: 18,456
Ontario, Canada
StevieC Online content
StevieC  Online Content
Joined: Aug 2008
Posts: 18,456
Ontario, Canada
Quote:
Lower viscosity engine oils can provide better fuel
economy and cold weather performance, however, higher viscosity
engine oils are required for satisfactory lubrication in hot weather.


I think this assumes conventional oil in use with the bare minimum MOFT that might be encountered not high quality synthetics.


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
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