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Ordered case of M1 LV ATF for my 2017 Ford Fusion #5286249 12/05/19 05:32 PM
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tig1 Offline OP
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I ordered it today from O"Reillys and supposed to be in tomorrow.


2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286274 12/05/19 06:01 PM
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Brybo86 Offline
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Is it on sale or something?

Last edited by Brybo86; 12/05/19 06:01 PM.

12 Honda Odyssey 112k
09 Kymco Super8
08 Honda Accord 2.4L 164k
01 Kymco People 50
95 Yamaha Jog
Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: Brybo86] #5286285 12/05/19 06:16 PM
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tig1 Offline OP
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Originally Posted by Brybo86
Is it on sale or something?

No, but none of the usual parts stores carries it and most can't order M1 LV.


2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286298 12/05/19 06:24 PM
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njohnson Offline
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Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: njohnson] #5286317 12/05/19 06:41 PM
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tig1 Offline OP
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Originally Posted by njohnson

Yes


2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286335 12/05/19 06:52 PM
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paoester Offline
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Don't you need Mercon LV, not the Dexron LV HP stuff you got?
Your owner's manual says: "Note: Automatic transmissions that require
MERCON LV transmission fluid should only
use MERCON LV transmission fluid. The
use of any other fluid may cause
transmission damage.
"

Last edited by paoester; 12/05/19 07:09 PM.
Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: paoester] #5286348 12/05/19 07:15 PM
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tig1 Offline OP
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Originally Posted by paoester
Don't you need Mercon LV, not the Dexron LV HP stuff you got?

I have used M1 ATF with Mercon 5 spec(not the LV version) in other Ford trans calling for some other weird spec like FNR-5 which my 2007 Fusion calls for. After 250K that trans still shifts up and down like new. I believe all these different specs for engines and trans are misleading. Both the MC LV spec and the M1 LV spec I light viscosity. Will try it our and report back soon on performance.


2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: paoester] #5286362 12/05/19 07:32 PM
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tig1 Offline OP
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Originally Posted by paoester
Don't you need Mercon LV, not the Dexron LV HP stuff you got?
Your owner's manual says: "Note: Automatic transmissions that require
MERCON LV transmission fluid should only
use MERCON LV transmission fluid. The
use of any other fluid may cause
transmission damage.
"

Here is a side by side back of Valvoline Max Life and M1. Both are spec'ed for various transmissions but he Valvoline is rated for Mercon LV and the standard (not LV) M1 ATF is not, but both are rated for Volvo97340, Dexron ll, and Allison C4 for example. All of these different specs are very closely related.[Linked Image]
[Linked Image]

Last edited by tig1; 12/05/19 07:33 PM.

2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286377 12/05/19 07:45 PM
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paoester Offline
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About which spec to use, I'm confused.
In the past, I've just used exactly what went in at the factory. I've never tried to "upgrade" my ATF fluid to some other Universal or alternate spec.
Something about elastomer compatibility, frictional characteristic, viscosity hydrualics dependence? I just don't know. Its complicated, maybe.

I'm that way with spark plugs too. Just use exact factory ones there.
Motor oil and diff fluid is different, I'll use an "upgraded" spec as long as it encompasses the lower spec. For example, if only SN is required, its easy to find a motor oil that is both SN and other higher specs.

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286390 12/05/19 07:53 PM
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tig1 Offline OP
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Actually I spoke to Mobil tech and they claim their fluids and oils meet many auto manf requirements but their are just too many hoops to jump through to cert all of them. More politics than anything.


2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286402 12/05/19 08:01 PM
Joined: Aug 2019
Posts: 643
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paoester Offline
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I'd bet you're fine with the Dexron HP atf. Viscosity isn't too much different anyway.
Some of the CVT fluids get real weird since precise friction etc. is more imporant there. For a conventional slushbox, probably you're fine going with about any ATF fluid that is close.

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: paoester] #5286406 12/05/19 08:08 PM
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Posts: 14,478
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tig1 Offline OP
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Originally Posted by paoester
I'd bet you're fine with the Dexron HP atf. Viscosity isn't too much different anyway.
Some of the CVT fluids get real weird since precise friction etc. is more imporant there. For a conventional slushbox, probably you're fine going with about any ATF fluid that is close.

I would agree.How can one brand of ATF meet the exact spec for many different makes of vehicles all calling for a different AFT spec. In thirty years I haven't had a trans or PS pump problem with M1 ATF. We'll see how this(M1 LV) shifts in the Fusion.

Last edited by tig1; 12/05/19 08:09 PM.

2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: tig1] #5286464 12/05/19 09:16 PM
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hallstevenson Offline
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Mobil 1 actually says that fluid is not recommended for Mercon LV applications. I'd use Valvoline Maxlife before I'd use Mobil 1.

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: paoester] #5286466 12/05/19 09:19 PM
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hallstevenson Offline
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Originally Posted by paoester
Don't you need Mercon LV, not the Dexron LV HP stuff you got? Your owner's manual says: "Note: Automatic transmissions that require MERCON LV transmission fluid should only use MERCON LV transmission fluid. The use of any other fluid may cause transmission damage."

The manual is out-of-date now. Castrol Full Synthetic ATF is approved/licensed by Ford to meet Mercon LV specs as well as MAG1's LV ATF being approved/licensed. That doesn't mean Castrol or Warren (who makes MAG1) claim it's good enough, it means Ford has given them a full stamp of approval.

Re: Ordered case of M1 LV ATF for my 2017 Ford Fusion [Re: hallstevenson] #5286476 12/05/19 09:32 PM
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tig1 Offline OP
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Originally Posted by hallstevenson
Mobil 1 actually says that fluid is not recommended for Mercon LV applications. I'd use Valvoline Maxlife before I'd use Mobil 1.

Originally Posted by hallstevenson
Mobil 1 actually says that fluid is not recommended for Mercon LV applications. I'd use Valvoline Maxlife before I'd use Mobil 1.

Originally Posted by hallstevenson
Originally Posted by paoester
Don't you need Mercon LV, not the Dexron LV HP stuff you got? Your owner's manual says: "Note: Automatic transmissions that require MERCON LV transmission fluid should only use MERCON LV transmission fluid. The use of any other fluid may cause transmission damage."

The manual is out-of-date now. Castrol Full Synthetic ATF is approved/licensed by Ford to meet Mercon LV specs as well as MAG1's LV ATF being approved/licensed. That doesn't mean Castrol or Warren (who makes MAG1) claim it's good enough, it means Ford has given them a full stamp of approval.

Read some of my comments above. M1 just hasn't jumped through all the cert hoops like others you mentioned.


2007 Ford Fusion 252,000 miles
M1 5-20HM
2017 Ford Fusion 85K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

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