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Can you use 0W oils in any car? #4472964
07/28/17 10:18 AM
07/28/17 10:18 AM
Joined: Jul 2017
Posts: 22
MN, USA
TheBeaz Offline OP
TheBeaz  Offline OP
Joined: Jul 2017
Posts: 22
MN, USA
I'm a beginner and still new to the site and I've noticed most people are using 0W-40 oils. Mobil says you can use a 0W-30 where 5W-30 and 10W-30 are recommended. Is the same true for 20 and 40? Can you use it in any engine? Thanks

Re: Can you use 0W oils in any car? [Re: TheBeaz] #4472969
07/28/17 10:24 AM
07/28/17 10:24 AM
Joined: Oct 2002
Posts: 36,638
Great Lakes
Quattro Pete Offline
Quattro Pete  Offline
Joined: Oct 2002
Posts: 36,638
Great Lakes
Generally, yes.


'02 530i (Edge 0W-40)
'15 Q5 3.0T (Edge 5W-40)
'18 Charger SRT (PUP 0W-40 SRT)
Re: Can you use 0W oils in any car? [Re: TheBeaz] #4472982
07/28/17 10:40 AM
07/28/17 10:40 AM
Joined: Feb 2013
Posts: 11,100
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline
Joined: Feb 2013
Posts: 11,100
Phoenix, AZ
Pretty much.

The first number is how the oil performs in cold weather on a cold start.

The second number is the operating viscosity.


2015 Hyundai Sonata 2.4L 89k Motorcraft Synthetic Blend 5w30 & OEM
2000 Toyota Camry 2.2L 231k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: Can you use 0W oils in any car? [Re: TheBeaz] #4472983
07/28/17 10:40 AM
07/28/17 10:40 AM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
The main thing to look at to see if a motor oil will work well in your engine is to compare the manufacturer recommended HTHS value with the oil you want to use. If you can't find the HTHS value, you can instead look at the Kinematic Viscosity at 100 degC (kv100). To your question, notice the 0w30 oils closely match the 5w30 oils in the same category (i.e., dexos1 category, or A3/B4 category) in HTHS and kv100.

Some engines do call for avoiding "0w" oils, but they are rare. About the only one I can think of is the high-revving Honda S2000 which actually specs 10w30 because the fear is the VII polymers get physically shredded under the extreme conditions, resulting in a loss of viscosity & oil film thickness.

That said, another high revving engine, Indycar engines at 10,000 rpm's, have used off-the-shelf Mobil1 0w40 and Pennzoil SRT 0w40 for some long races. I think they just factor in the loss in viscosity which also frees up horsepower in the later stages of the race. Shredding happens.

Re: Can you use 0W oils in any car? [Re: TheBeaz] #4472989
07/28/17 10:48 AM
07/28/17 10:48 AM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California

Re: Can you use 0W oils in any car? [Re: TheBeaz] #4472999
07/28/17 10:58 AM
07/28/17 10:58 AM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
My car also says that. I would use it, especially if I lived up north. However, if you are under warranty, you better use what they list in the manual.


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: Can you use 0W oils in any car? [Re: Nick1994] #4473044
07/28/17 12:05 PM
07/28/17 12:05 PM
Joined: May 2005
Posts: 3,657
SF Bay Area
y_p_w Offline
y_p_w  Offline
Joined: May 2005
Posts: 3,657
SF Bay Area
Originally Posted By: Nick1994
Pretty much.

The first number is how the oil performs in cold weather on a cold start.

The second number is the operating viscosity.

Not exactly. I know it kind of simplifies to that, but the reality is that there's a lot more than just two temperatures. The W number is typically from characteristics at some ridiculously low temperature that pretty much nobody will experience. The second number is at 100C, which is more realistic but not all motor oil will be running at that exact temperature based on several factors including how the engine is being run, if there's an oil cooler, and ambient temperatures. It's also a range, so it can be possible to tweak the characteristics towards one end of the range or another.

It's certainly possible to engineer a 0W-40 that will be thicker on a 45F warm start than a 5W-30. I'm currently using Mobil 1 0W-40, and it's certainly more viscous at summer temps than most 5W-30 oils. I recall there are even 0W-30 motor oils that are thicker at typical ambient temps than most 5W-30 oils.

Re: Can you use 0W oils in any car? [Re: TheBeaz] #4473056
07/28/17 12:17 PM
07/28/17 12:17 PM
Joined: Sep 2007
Posts: 1,030
TX, USA
JMJNet Offline
JMJNet  Offline
Joined: Sep 2007
Posts: 1,030
TX, USA
Originally Posted By: TheBeaz
I'm a beginner and still new to the site and I've noticed most people are using 0W-40 oils. Mobil says you can use a 0W-30 where 5W-30 and 10W-30 are recommended. Is the same true for 20 and 40? Can you use it in any engine? Thanks


Instead of wandering in generality, what kind of cars do you have specifically what year and model?


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: Can you use 0W oils in any car? [Re: TheBeaz] #4473137
07/28/17 02:06 PM
07/28/17 02:06 PM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline
merconvvv  Offline
Joined: Jul 2016
Posts: 682
il usa
Chances are 10w30 will burn less than 0w30 and 0w40. So oil consumption might be a factor.

Climate, warranty, owners manual and other factors dictate also.


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: Can you use 0W oils in any car? [Re: JMJNet] #4473138
07/28/17 02:07 PM
07/28/17 02:07 PM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline
merconvvv  Offline
Joined: Jul 2016
Posts: 682
il usa
Originally Posted By: JMJNet
Originally Posted By: TheBeaz
I'm a beginner and still new to the site and I've noticed most people are using 0W-40 oils. Mobil says you can use a 0W-30 where 5W-30 and 10W-30 are recommended. Is the same true for 20 and 40? Can you use it in any engine? Thanks


Instead of wandering in generality, what kind of cars do you have specifically what year and model?


+1


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: Can you use 0W oils in any car? [Re: Quattro Pete] #4473205
07/28/17 04:00 PM
07/28/17 04:00 PM
Joined: Sep 2009
Posts: 16,194
OH
fdcg27 Online content
fdcg27  Online Content
Joined: Sep 2009
Posts: 16,194
OH
Originally Posted By: Quattro Pete
Generally, yes.


+1
There's typically no reason that one couldn't.
OTOH, why use what may be a higher NOACK oil unless you often see morning temperatures of -35C, in which case you'd plug the car in anyway, I'd hope.


18 Accord Hybrid FF
17 Forester 18K VME 0W-20
12 Accord LX 96K SSO 0W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Can you use 0W oils in any car? [Re: TheBeaz] #4473338
07/28/17 07:08 PM
07/28/17 07:08 PM
Joined: Mar 2008
Posts: 7,349
USA
slacktide_bitog Offline
slacktide_bitog  Offline
Joined: Mar 2008
Posts: 7,349
USA
The only time it's not ok to use it is in some older turbos that say no 0w oils, because oil tech wasn't as good as it is now. Even the cheapest SN oil is better than anything available 20 years ago, and better than most oils available 10 years ago

Re: Can you use 0W oils in any car? [Re: TheBeaz] #4473541
07/28/17 10:47 PM
07/28/17 10:47 PM
Joined: Sep 2015
Posts: 6,090
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,090
Kalifornia Kollective
That pretty much sums it up smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Can you use 0W oils in any car? [Re: TheBeaz] #4473652
07/29/17 05:49 AM
07/29/17 05:49 AM
Joined: Jun 2016
Posts: 552
South OZ
KL31 Offline
KL31  Offline
Joined: Jun 2016
Posts: 552
South OZ
Most beginners think 0w means it's 0 "weight" in the cold, which is where they go wrong.

It's more the ability for the oil to pump (from my own limited understanding). I compare it to coolant. Coolant will not freeze as easy as water and will raise the boiling point but doesn't make your car run cooler than straight water. 10w30 can be thinner in cSt than 0w40 at normal startup temps but at extremely low temps will not pump where 0w40 will.

Last edited by KL31; 07/29/17 05:50 AM.

95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn
Re: Can you use 0W oils in any car? [Re: TheBeaz] #4473659
07/29/17 05:57 AM
07/29/17 05:57 AM
Joined: Sep 2010
Posts: 2,100
GA.
ChrisD46 Offline
ChrisD46  Offline
Joined: Sep 2010
Posts: 2,100
GA.
Hyundai / Kia are not fond of 0W oils - I believe now even Mobil does not recommend 0W AFE oils for Hyundai / Kia any more (not sure why Hyundai / Kia only endorse 5W as the lowest winter weight ?)


2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
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