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#4519437 - 09/18/17 01:41 PM Mixing mobil 1high mileage with rotella
chevytherealdeal Offline


Registered: 03/02/13
Posts: 30
Loc: ohio
Can i mix rotella t4 and mobil 1 high mileage to make my own syn blend for better cold starts this winter? 94 f150 302 165000 miles. Or will the additives not blend?

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#4519442 - 09/18/17 01:46 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2734
Loc: Wet side WA
Why would you even want to bother when you can get Mobil 1 on Rollback for $22.88 and get a Mobil rebate?
_________________________
2004 Toyota Corolla 121598
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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#4519443 - 09/18/17 01:48 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
Phishin Offline


Registered: 05/01/12
Posts: 2428
Loc: Indiana
Originally Posted By: chevytherealdeal
Can i mix rotella t4 and mobil 1 high mileage to make my own syn blend for better cold starts this winter? 94 f150 302 165000 miles. Or will the additives not blend?


They all blend. No issues. Some may not be "optimum", but no one here has EVER shown a real problem with mixing oil.

Mix away.
_________________________
2018 Chevy Silerado 3500HD 6.0L Gas: Undecided
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2014 CR-V LX K24: M1 0w30

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#4519448 - 09/18/17 01:52 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
chevytherealdeal Offline


Registered: 03/02/13
Posts: 30
Loc: ohio
I would rather run mobil 1 but i just fear it might start to leak

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#4519450 - 09/18/17 01:53 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
demarpaint Offline


Registered: 07/03/05
Posts: 29747
Loc: NY
The oil will mix fine, the outcome is anyone's guess though. The problem is there is no guarantee your blend is going to be 'better' for cold winter starts. It might be, and it might not be better. I'd pick one oil and use it, if you're concerned with cold starts get a 0W30 synthetic.
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#4519463 - 09/18/17 02:13 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
69GTX Offline


Registered: 09/23/15
Posts: 3815
Loc: Connecticut
If you're mixing a 20/30 grade Mobil 1 with Rotella, they have very different chemical add packs. I wouldn't bother. Now at least the M1 0w-40 is similar. And I would suspect so are the other M1 40/50 grades.
_________________________
----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
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#4519490 - 09/18/17 02:52 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
Bronco1 Offline


Registered: 01/06/17
Posts: 137
Loc: Colorado
Why would you want to? Wouldn't it make more sense to get a quality synthetic blend instead? Motocraft, Valvoline Maxlife, etc., there are a bunch of quality blends to choose from. I believe your owner's manual calls 5w30 cold weather and 10w30 rest of the year. I'm too lazy to go out to the Bronco and check
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#4519494 - 09/18/17 02:56 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
LeakySeals Offline


Registered: 02/18/11
Posts: 6561
Loc: Hudson, NH
Yes. It will blend into a diluted version of both.
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06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
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#4519558 - 09/18/17 04:19 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
Bandito440 Offline


Registered: 02/13/12
Posts: 3854
Loc: NEUS
It'll blend fine, but there won't be any tangible benefit. Just pick one.
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#4519589 - 09/18/17 05:16 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
lawrencerd Offline


Registered: 07/03/13
Posts: 116
Loc: NC
If you want a synblend why not run rotella t5 or similar (Delo 10w30 blend etc)?

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#4519677 - 09/18/17 07:29 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
justintendo Offline


Registered: 03/04/17
Posts: 101
Loc: northwest pa
just run the mobil 1 in 5w-30 hm and relax. oil wont cause leaks for you
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#4519686 - 09/18/17 07:37 PM Re: Mixing mobil 1high mileage with rotella [Re: justintendo]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2734
Loc: Wet side WA
Originally Posted By: justintendo
just run the mobil 1 in 5w-30 hm and relax. oil wont cause leaks for you


And its on Rollback at Walmart!
_________________________
2004 Toyota Corolla 121598
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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#4519694 - 09/18/17 07:43 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
CT8 Online   content


Registered: 10/09/14
Posts: 10942
Loc: Idaho
Mix away all will be ok , Making a better oil I doubt it.
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Geoff Metcalf

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#4519798 - 09/18/17 09:25 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
K23Turbo Offline


Registered: 02/05/09
Posts: 224
Loc: Pennsylvania
Go ahead a mix em. My unscientific guess is, it will run fine and normal.

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#4519816 - 09/18/17 09:48 PM Re: Mixing mobil 1high mileage with rotella [Re: chevytherealdeal]
Shannow Online   content


Registered: 12/12/02
Posts: 39849
Loc: 'Stralia
Originally Posted By: chevytherealdeal
Can i mix rotella t4 and mobil 1 high mileage to make my own syn blend for better cold starts this winter? 94 f150 302 165000 miles. Or will the additives not blend?


It will mix, and not blow chunks, nor drop the additives out of suspension.

But if you are doing it to improve cold start performance, that's precisely the area that the (very) rare industry examples of issues have occurred...

What's the viscosity of the M1 that you are planning on using ?

Haven't seen that info.

what temperature are you trying to improve it at ?

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