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Mixing some 0w20 and 0w30 #4511554
09/09/17 12:12 PM
09/09/17 12:12 PM
Joined: May 2017
Posts: 851
TX
parshisa Offline OP
parshisa  Offline OP
Joined: May 2017
Posts: 851
TX
How safe would it be to mix amsoil 0w20 (a little less then a quart) and another 3qts of Mobil 1 0w30 in TGDI Civic? Have some amsoil left and going up on the grade so was wondering if the mix will be fine. Appreciate y'alls opinions

Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511556
09/09/17 12:17 PM
09/09/17 12:17 PM
Joined: Apr 2004
Posts: 7,832
New York
pbm Offline
pbm  Offline
Joined: Apr 2004
Posts: 7,832
New York
Shouldn't be a problem.


'Journalism is Dead'
Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511560
09/09/17 12:22 PM
09/09/17 12:22 PM
Joined: May 2017
Posts: 851
TX
parshisa Offline OP
parshisa  Offline OP
Joined: May 2017
Posts: 851
TX
Wonder what vis will it be (at 100). Guess in lower 10s?

Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511566
09/09/17 12:35 PM
09/09/17 12:35 PM
Joined: Aug 2017
Posts: 565
Nebraska
BJD78 Offline
BJD78  Offline
Joined: Aug 2017
Posts: 565
Nebraska
Mixing at a ratio of less than 1 qt of 0w20 to 3 qts of 0w30 likely won't make much difference at all. As far as 0w20 versus 0w30, it will be basically the same weight cold, at startup. Still best to use the oil type weight recommended by the OM. I have never ever seen an owners manual that recommendeds mixing different weights of oil. Best to go with what the oil weight the owner manual says IMO.


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: Mixing some 0w20 and 0w30 [Re: parshisa] #4511578
09/09/17 12:56 PM
09/09/17 12:56 PM
Joined: Dec 2016
Posts: 7,171
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,171
Waco, TX
Every time you change your oil, mixing occurs.
No problems at all from mixing.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511591
09/09/17 01:08 PM
09/09/17 01:08 PM
Joined: Jan 2017
Posts: 336
Texas,USA
ATex7239 Offline
ATex7239  Offline
Joined: Jan 2017
Posts: 336
Texas,USA
I'm as frugal as the next guy, but it a quart of oil going to rock your bank account...

Why risk your engine's health over 6 bucks? My 2 cents.


'12 Buick Enclave 150,xxx
Valvoline ML SynBlend 5w30
ACDelco PF63E

'17 Ford Fusion (Company Lease) 54,xxx
Oil � Don't know
Filter � Don't care
Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511644
09/09/17 02:45 PM
09/09/17 02:45 PM
Joined: Apr 2010
Posts: 13,537
Chicago, IL
dparm Offline
dparm  Offline
Joined: Apr 2010
Posts: 13,537
Chicago, IL
API oils must be mixable with other oils, so you'll be fine. Some blenders actually encourage it so you can get a custom viscosity.


2017 Chevrolet Corvette Grand Sport
Re: Mixing some 0w20 and 0w30 [Re: pbm] #4511659
09/09/17 03:05 PM
09/09/17 03:05 PM
Joined: Nov 2008
Posts: 3,298
Oshawa, Ontario Canada
JC1 Online content
JC1  Online Content
Joined: Nov 2008
Posts: 3,298
Oshawa, Ontario Canada
Originally Posted By: pbm
Shouldn't be a problem.


+1. I wouldn't worry about it.


2015 Grand Caravan SXT Plus 5w-20 PPPP/Fram Ultra Filter
1997 Honda Civic CX 5w-30 Shell Conventional/Fram Ultra Filter
Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511673
09/09/17 03:33 PM
09/09/17 03:33 PM
Joined: Sep 2015
Posts: 3,944
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,944
Connecticut
It's safe. But not optimal. Not because of the viscosity difference. But, that the add packs for those 2 oils are quite different. If I;m mixing different brands oils, I much prefer to use those that have similar add packs.

Amsoil VOA

Mobil 1 PQIA


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Mixing some 0w20 and 0w30 [Re: dparm] #4511680
09/09/17 03:41 PM
09/09/17 03:41 PM
Joined: Mar 2015
Posts: 5,425
Virginia
bbhero Offline
bbhero  Offline
Joined: Mar 2015
Posts: 5,425
Virginia
What blenders suggest this as good practice?? I am saying you are wrong about this. But I will say it is the first I have heard of this.
One aspect of note here as others have stated about this mixing.... Yes it can surely be done. However, all it really means is that API approved oils will not coagulate or form jello in your vehicle. It does not guruantee performance standards will be met or satisfied. This is true for the winter term rating part especially. Two different 0w's may well not equate real world 0w performance. For this reason it might not be advisable mixing two totally different oils if vehicle was going to experience the coldest limits of the winter rating.

Having stated this, I have a mix in my lady's Camry right now. It has 2 qts of 30 grade Warren and 1 qt of 30 grade Coastal, rislone and I just had to add 20ozs of Cam2 Superpromax the other day. It was put in July and it's coming out in just a bit. I don't mind mixing this up in the summer time. Coming up for the next run it will get Valvoline Maxlife Full Synthetic 5w30 only and a new oil filter. No bigtime mixing for winter time.


Nissan Altima 3.5 Coupe
Mobil Super 5w30 Wix 57356
"Treat your family like your friends and treat your friends like your family."
Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511775
09/09/17 06:28 PM
09/09/17 06:28 PM
Joined: Oct 2014
Posts: 12,582
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,582
Idaho
Use the oil up it will be fine.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511781
09/09/17 06:41 PM
09/09/17 06:41 PM
Joined: Sep 2009
Posts: 16,183
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,183
OH
Many of us took refraining from mixing as an article of faith for many years.
Along came Sonofjoe who in another thread basically debunked our concerns.
You'll end up with a thickish twenty with the mix you propose and the 0W qualification should still be met, as though that would actually matter in Texas.
Just as a matter of interest, is the Amsoil SSO or is it one of their API licensed products?
The API products are not too much different from M1.


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: Mixing some 0w20 and 0w30 [Re: ATex7239] #4511787
09/09/17 06:44 PM
09/09/17 06:44 PM
Joined: Nov 2011
Posts: 4,970
MTL, CANADA
Rolla07 Offline
Rolla07  Offline
Joined: Nov 2011
Posts: 4,970
MTL, CANADA
Originally Posted By: ATex7239
I'm as frugal as the next guy, but it a quart of oil going to rock your bank account...

Why risk your engine's health over 6 bucks? My 2 cents.


How does ur engine suffer from less than a quart of non similar oil?.. wont make any difference. I dont think the car is able to figure out the difference.


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

Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511817
09/09/17 07:06 PM
09/09/17 07:06 PM
Joined: Feb 2009
Posts: 229
Pennsylvania
K23Turbo Offline
K23Turbo  Offline
Joined: Feb 2009
Posts: 229
Pennsylvania
Mix away. You bought the oil. With good money. Use all of it up.

Re: Mixing some 0w20 and 0w30 [Re: parshisa] #4511826
09/09/17 07:20 PM
09/09/17 07:20 PM
Joined: Oct 2009
Posts: 3,524
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,524
Wet side WA
After its been pumped around in that engine for an hour and has gotten real warm it'll be mixed!


2004 Corolla 126813
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74478
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
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