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#4632854 - 01/12/18 07:16 PM Does M1 AFE really improve mpg?
Matagonka Offline


Registered: 02/03/15
Posts: 470
Loc: NC
Anyone have experience with M1 Advanced Fuel Economy improving MPGs? If so, what difference are you seeing?

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#4632878 - 01/12/18 07:36 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
Shannow Online   content


Registered: 12/12/02
Posts: 40156
Loc: 'Stralia
Depends on what you are running before you install AFE.

If you are using an ILSAC 0W30, or Mobil's own M1 5W30, you'll measure nothing.

If you are using a 15W30, you'll get a couple of percent.

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#4632879 - 01/12/18 07:37 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
kschachn Offline


Registered: 12/26/05
Posts: 9513
Loc: Upper Midwest
Originally Posted By: Matagonka
Anyone have experience with M1 Advanced Fuel Economy improving MPGs? If so, what difference are you seeing?

Given the myriad variables in everyday driving that overwhelm the much smaller effect of the oil, you will never see it. It is there but it is far into the noise.

An article I linked once showed that the energy density of gasoline varies by up to 4% even at the same station. That is much more than what the oil can affect.
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1994 BMW 530i, 227K
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#4632880 - 01/12/18 07:38 PM Re: Does M1 AFE really improve mpg? [Re: Shannow]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
Originally Posted By: Shannow
If you are using a 15W-40, you'll get a couple of percent.


If you are lucky.

FlyNavyP3 just ran 20W-50 in his Lexus, fuel economy didn't change any appreciable amount.
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#4632886 - 01/12/18 07:41 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1908
Loc: SE British Columbia, Canada
Very hard to get scientifically measure it because variations in wind, elevation changes, and speed mask the results . However, itís been well proven on dynamometers and they they are comfortable advertising it as such. Donít expect anything over a few percentage points.

SF

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#4632889 - 01/12/18 07:43 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
Shannow Online   content


Registered: 12/12/02
Posts: 40156
Loc: 'Stralia
Originally Posted By: Mobil
*Savings would be based on 0.2-2.3 percent potential fuel economy improvement obtained by switching from higher viscosity oils to a 0W-20 or 0W-30 grade. Actual savings are dependent upon vehicle/engine type, outside temperature, driving conditions and your current engine oil viscosity.

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#4632891 - 01/12/18 07:43 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
PimTac Online   content


Registered: 03/04/17
Posts: 4617
Loc: Soviet State of Washington
Marketing at its best. Still, itís a good oil. Just donít expect to see any gains in fuel economy.
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#4632915 - 01/12/18 08:04 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
FlyNavyP3 Offline


Registered: 07/04/16
Posts: 1428
Loc: Jacksonville, FL
I measured between a 0.5-1.0% loss of fuel economy switching from a 5w30 to a 20w50 averaged over 5,000 for each OCI. Not scientific as there's the issue of getting the tank exactly the same fill level over each fill up but averaged over 5,000 miles each time helps to increase the data points and reduce error. Even still 5w30 to 20w50 was about 0.3 MPG on a 26 ish MPG average car.
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#4632916 - 01/12/18 08:04 PM Re: Does M1 AFE really improve mpg? [Re: PimTac]
gabriel9766 Offline


Registered: 05/10/15
Posts: 943
Loc: Missouri
Running AFE 0w20 in the malibu and cant tell. It's also winter so i remote start the car every morning so cant tell.
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2008 Ford Escape XLT 2.3L MC 5w30 187K

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#4632930 - 01/12/18 08:12 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
tig1 Offline


Registered: 01/03/09
Posts: 13722
Loc: Illinois
When I first bought my 2007 Ford Fusion I used M1 5-30 for two 10K OCIs. During that time(about one year) I made two trips to my sons home in Florida(900 miles one way) and it's Interstate hyw all the way. I run right at the 70 MPH speed limit. My MPG varied from 30 to 32.5. After changing to M1 0-20 my mileage has increased to 31 to 33.5 for the last 19 trips to Florida.
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2007 Ford Fusion 228,000 miles
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M1 ATF and MC LV
M1 10-30 in all OPE
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#4632952 - 01/12/18 08:25 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
mclasser Offline


Registered: 04/13/13
Posts: 2257
Loc: The Northeast
I'm running AFE 0w20 in the Pilot now; no difference. Also ran it last summer; no difference.

On another note, I notice the valvetrain's a little noisier with this stuff hornets


Edited by mclasser (01/12/18 08:27 PM)
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#4632988 - 01/12/18 08:50 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
Dumc87 Offline


Registered: 06/05/10
Posts: 591
Loc: Florida
I didn't like it in my Matrix. Seemed thin, and didn't notice a significant MPG increase. Castrol Edge HM 5w20 seemed to net just as good MPG without the chatter.
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#4633004 - 01/12/18 09:01 PM Re: Does M1 AFE really improve mpg? [Re: tig1]
PimTac Online   content


Registered: 03/04/17
Posts: 4617
Loc: Soviet State of Washington
Originally Posted By: tig1
When I first bought my 2007 Ford Fusion I used M1 5-30 for two 10K OCIs. During that time(about one year) I made two trips to my sons home in Florida(900 miles one way) and it's Interstate hyw all the way. I run right at the 70 MPH speed limit. My MPG varied from 30 to 32.5. After changing to M1 0-20 my mileage has increased to 31 to 33.5 for the last 19 trips to Florida.



Your engine broke in and quite well too as your history shows.
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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#4633039 - 01/12/18 09:35 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
Starman2112 Offline


Registered: 11/27/15
Posts: 326
Loc: East Tennessee
Iíd say if any it would be minuscule.
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2010 Toyota Camry LE 2.5L, Mobil 1 AFE 0W-20, OEM filter
1998 Nissan Frontier XE 2.4L, Castrol GTX HM 5W-30, M1 filter

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#4633048 - 01/12/18 09:50 PM Re: Does M1 AFE really improve mpg? [Re: Matagonka]
eljefino Offline


Registered: 06/15/03
Posts: 32772
Loc: ME
Way less than tires, weather, etc.

Best mileage in my Camry (non-hybrid, 2.4, stick shift) of 34 MPG delivered in May/June on AFE 0w30. But-but-but it was within the static between tanks. Dumped that AFE for some summer weight shortly thereafter but started using AC which pulled MPG down.

I was only running it b/c I got it cheap at AZ.

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