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#2908576 - 02/16/13 03:15 PM Bad gas mileage with M1
oilchangeguy Offline


Registered: 02/22/09
Posts: 345
Loc: North Carolina
Switched to M1 5w20 for this oci. My gas mileage has dropped by over 1 mpg and getting worse as the oil ages. Had been using Motorcraft 5w20 blend. I'm switching back.
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'15 Dodge Ram 1500
'11 Nissan Altima,NAPA Syn,Nissan Filter

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#2908580 - 02/16/13 03:17 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
gathermewool Offline


Registered: 01/09/09
Posts: 3988
Loc: New England
It's in your head, seriously.
_________________________
14 Forester XT
GC 0W-30 + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra Guard filter

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#2908581 - 02/16/13 03:17 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
Laddie Offline


Registered: 02/15/13
Posts: 14
Loc: Baltimore, Maryland
Originally Posted By: oilchangeguy
Switched to M1 5w20 for this oci. My gas mileage has dropped by over 1 mpg and getting worse as the oil ages. Had been using Motorcraft 5w20 blend. I'm switching back.


What OCI's do you do?

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#2908583 - 02/16/13 03:18 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
OVERKILL Online   content


Registered: 04/28/08
Posts: 28993
Loc: Ontario, Canada
Unless it magically changed into 20w60, I think you have other issues.
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Network Engineer
02 Expedition
01 BMW ///M5
06 Charger R/T

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#2908584 - 02/16/13 03:19 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
simple_gifts Offline


Registered: 07/26/04
Posts: 9903
Loc: Middlesex County CT
Too many uncontrolled variables to conclude anything; tire pressure, atmospheric pressure, wind, fuel forumlation etc etc etc.
_________________________
2003 Echo >368K miles; ST 10W-40HM and some #132
2006 B2300;94K;ALM

Note to park visitors: Yellowstone wildlife is wild

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#2908590 - 02/16/13 03:25 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
oilchangeguy Offline


Registered: 02/22/09
Posts: 345
Loc: North Carolina
OCI is about 4k. I keep very close eyes on tire pressure. Just seems like its the oil, I could be wrong. When I switch back MC, I'll know for sure.
_________________________
'15 Dodge Ram 1500
'11 Nissan Altima,NAPA Syn,Nissan Filter

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#2908591 - 02/16/13 03:25 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
gathermewool Offline


Registered: 01/09/09
Posts: 3988
Loc: New England
Oh, and if you're dumping your oil and changing the filter ealier than you would JUST to get the M1 out, you'll be throwing the cost of those miles left in the OCI down the drain.
_________________________
14 Forester XT
GC 0W-30 + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra Guard filter

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#2908593 - 02/16/13 03:25 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
donnyj08 Offline


Registered: 08/12/12
Posts: 1585
Loc: indiana
My truck will get better fuel mileage on MS5k or MSS than any other oil. people can choose not to believe me, however i drive the same route at the same time of day 6 days a week at the same pace checking every fill up. i will get .7-.8 mpg better with MS5k or MSS, i swear to it.


I love mobil 1 3 vehicles in my driveway have M1 5w30 in them right now, but honestly the fords ive owned including a supercharged mustang GT ran quieter and better on the Motorcraft 5w20 than M1 5w20.
_________________________
2008 Silverado Z71 LT 47k 5w30 Synpower; OCOD
2012 Yamaha FZ6R. 3k Amsoil 10w40 Metric; Fram

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#2908598 - 02/16/13 03:29 PM Re: Bad gas mileage with M1 [Re: donnyj08]
KCJeep Online   content


Registered: 06/30/11
Posts: 5595
Loc: Mahzurrah!
Originally Posted By: donnyj08
My truck will get better fuel mileage on MS5k or MSS than any other oil. people can choose not to believe me, however i drive the same route at the same time of day 6 days a week at the same pace checking every fill up. i will get .7-.8 mpg better with MS5k or MSS, i swear to it.



I've seen a LOT of people make that comment about Super, you're not alone.

A lot of complaints about M1 and noise too...doesn't mean it's not working well but I don't like noise either. Rumor has it the AFE versions are quieter.
_________________________
2004 Jeep GC WJ 4.0 @ 126k Pennzoil SAE 30 w/ MMO
Motorcraft FL-1A
KIA Sedona 47k, Chevy Lumina 177k, Chrysler Sebring 179k, Chrysler Concorde 103k

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#2908599 - 02/16/13 03:29 PM Re: Bad gas mileage with M1 [Re: simple_gifts]
Astro14 Offline


Registered: 10/10/10
Posts: 5518
Loc: Virginia Beach
Originally Posted By: simple_gifts
Too many uncontrolled variables to conclude anything; tire pressure, atmospheric pressure, wind, fuel forumlation etc etc etc.


Exactly!

It's winter now...winter fuel formulation, longer open loop operation, more warm up time, etc...


Edited by Astro14 (02/16/13 03:30 PM)
_________________________
32 Packard 15W40
90 4Runner 10W40 QS4X4
92 300E 5W40 LiquiMoly
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 5W30 PU
05 MB S600 0W40 M1
06 Corolla 5W30 Edge

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#2908600 - 02/16/13 03:29 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
simple_gifts Offline


Registered: 07/26/04
Posts: 9903
Loc: Middlesex County CT
Quote:

When I switch back MC, I'll know for sure.


Actually you won't.
_________________________
2003 Echo >368K miles; ST 10W-40HM and some #132
2006 B2300;94K;ALM

Note to park visitors: Yellowstone wildlife is wild

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#2908602 - 02/16/13 03:32 PM Re: Bad gas mileage with M1 [Re: donnyj08]
OVERKILL Online   content


Registered: 04/28/08
Posts: 28993
Loc: Ontario, Canada
Originally Posted By: donnyj08
My truck will get better fuel mileage on MS5k or MSS than any other oil. people can choose not to believe me, however i drive the same route at the same time of day 6 days a week at the same pace checking every fill up. i will get .7-.8 mpg better with MS5k or MSS, i swear to it.


I love mobil 1 3 vehicles in my driveway have M1 5w30 in them right now, but honestly the fords ive owned including a supercharged mustang GT ran quieter and better on the Motorcraft 5w20 than M1 5w20.


My 5.4L doesn't seem to care what is in the sump shrug I've run everything from D1 5w-40 to M1 5w20 in it (and a pile of oils in between, like Redline 5w-30, PC 0w-30, M1 AFE 0w-30 (current), AMSOIL AZO 0w-30, PC Duron-E 0w-40, M1 0w-40) with no discernible difference in fuel consumption.
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02 Expedition
01 BMW ///M5
06 Charger R/T

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#2908608 - 02/16/13 03:35 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
MrQuackers Offline


Registered: 08/17/12
Posts: 1427
Loc: Oregon
Winter WinteR WINTER
_________________________
Trapped in time. Surrounded by evil. Low on gas.

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#2908614 - 02/16/13 03:38 PM Re: Bad gas mileage with M1 [Re: MrQuackers]
Cujobob Offline


Registered: 01/18/13
Posts: 151
Loc: Michigan
Too many variables, flawed experiment.

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#2908637 - 02/16/13 04:01 PM Re: Bad gas mileage with M1 [Re: oilchangeguy]
spasm3 Offline


Registered: 05/30/10
Posts: 5043
Loc: out there
When i had my ford escape, i could not measure any fuel mileage difference between 5-20, 5-30 and 5-40. So i don't believe there would be any fuel economy differences between brands of 5-20.


Edited by spasm3 (02/16/13 04:01 PM)
_________________________
13 elantra 35k 5w30 ultra
03 chevy avalanche64k m1 0-30
02 saturnsc1 60k qsud
01 saturnsc1 165k nextgenhm
93 ciera 69k 5w30mc5k
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