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#4511554 - 09/09/17 01:12 PM Mixing some 0w20 and 0w30
parshisa Offline


Registered: 05/21/17
Posts: 526
Loc: 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
_________________________
2016 Honda Pilot 3.5V6 PP 0W20
2017 Honda Civic 1.5T Amsoil SS 5W30

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#4511556 - 09/09/17 01:17 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
pbm Offline


Registered: 04/19/04
Posts: 7591
Loc: New York
Shouldn't be a problem.
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'Journalism is Dead'

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#4511560 - 09/09/17 01:22 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
parshisa Offline


Registered: 05/21/17
Posts: 526
Loc: TX
Wonder what vis will it be (at 100). Guess in lower 10s?
_________________________
2016 Honda Pilot 3.5V6 PP 0W20
2017 Honda Civic 1.5T Amsoil SS 5W30

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#4511566 - 09/09/17 01:35 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
BJD78 Offline


Registered: 08/05/17
Posts: 493
Loc: 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.

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#4511578 - 09/09/17 01:56 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Every time you change your oil, mixing occurs.
No problems at all from mixing.
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"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4511591 - 09/09/17 02:08 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
ATex7239 Offline


Registered: 01/19/17
Posts: 331
Loc: 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 139,xxx
Valvoline ML SynBlend 5w30
ACDelco PF63E

'17 Ford Fusion (Company Lease) 42,xxx
Oil Don't know
Filter Don't care

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#4511644 - 09/09/17 03:45 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: 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

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#4511659 - 09/09/17 04:05 PM Re: Mixing some 0w20 and 0w30 [Re: pbm]
JC1 Offline


Registered: 11/29/08
Posts: 2999
Loc: 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/Wix Filter
1997 Honda Civic CX 5w-30 PPPP/Mahle Filter

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#4511673 - 09/09/17 04:33 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
69GTX Offline


Registered: 09/23/15
Posts: 3815
Loc: 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

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#4511680 - 09/09/17 04:41 PM Re: Mixing some 0w20 and 0w30 [Re: dparm]
bbhero Offline


Registered: 03/20/15
Posts: 4611
Loc: 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.
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Nissan Altima 3.5 Coupe Valvoline Advanced Full Synthetic 5w30 Federated Auto 4612ex
"Treat your family like your friends and treat your friends like your family."

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#4511775 - 09/09/17 07:28 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
CT8 Offline


Registered: 10/09/14
Posts: 10920
Loc: Idaho
Use the oil up it will be fine.
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"Don't let your preconceived notions get in the way of facts."Geoff Metcalf"

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#4511781 - 09/09/17 07:41 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
fdcg27 Online   content


Registered: 09/25/09
Posts: 15682
Loc: 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.
_________________________
17 Forester 12K MSS 0W-20
12 Accord LX 86K 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

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#4511787 - 09/09/17 07:44 PM Re: Mixing some 0w20 and 0w30 [Re: ATex7239]
Rolla07 Offline


Registered: 11/05/11
Posts: 4732
Loc: 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


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#4511817 - 09/09/17 08:06 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
K23Turbo Offline


Registered: 02/05/09
Posts: 224
Loc: Pennsylvania
Mix away. You bought the oil. With good money. Use all of it up.

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#4511826 - 09/09/17 08:20 PM Re: Mixing some 0w20 and 0w30 [Re: parshisa]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2731
Loc: Wet side WA
After its been pumped around in that engine for an hour and has gotten real warm it'll be mixed!
_________________________
2004 Toyota Corolla 121525
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74016
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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