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


Registered: 02/22/09
Posts: 386
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.
_________________________
'15 Dodge Ram 1500, Mobil Super Synthetic, NAPA Gold Filter
'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: 4745
Loc: New England
It's in your head, seriously.
_________________________
14 Forester XT
PUPPP + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra (3rd OFI)

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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 Offline


Registered: 04/28/08
Posts: 31746
Loc: Ontario, Canada
Unless it magically changed into 20w60, I think you have other issues.
_________________________
02 Expedition
06 Charger R/T
14 Charger SRT-8

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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: 10791
Loc: Middlesex County CT
Too many uncontrolled variables to conclude anything; tire pressure, atmospheric pressure, wind, fuel forumlation etc etc etc.
_________________________
2003 Echo >392K miles; Castrol 5W-50
2006 B2300;108K;ALM

Please conserve paper; it is not like it grows on trees.

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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: 386
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, Mobil Super Synthetic, NAPA Gold Filter
'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: 4745
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
PUPPP + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra (3rd OFI)

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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: 2555
Loc: Cincinnati, OH
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 75k Kendall FS 5w30, Hastings LF613

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


Registered: 06/30/11
Posts: 6347
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 Grand 4.0 @ 133k Pennzoil HM 10w30 w/ 1 qt 10w40
Fram PH8A
KIA Sedona 60k, Ford Focus 115k, Chrysler Sebring 186k, Chrysler Concorde 115k

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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: 6666
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 Edge
92 300E 0W40 Edge
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 5W40 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: 10791
Loc: Middlesex County CT
Quote:

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


Actually you won't.
_________________________
2003 Echo >392K miles; Castrol 5W-50
2006 B2300;108K;ALM

Please conserve paper; it is not like it grows on trees.

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


Registered: 04/28/08
Posts: 31746
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.
_________________________
02 Expedition
06 Charger R/T
14 Charger SRT-8

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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: 1796
Loc: Oregon
Winter WinteR WINTER
_________________________
As iron sharpens iron, so one man sharpens another

coffee Brawndo's got electrolytes!

Change your oil every 3k-5k

-AEHaas

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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: 6293
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 46k 5w30 ultra
03 chevy avalanche67k pyb
02 saturnsc1 66k 0w40 castrol
01 saturnsc1 185k being rebuilt
93 ciera 79k 5w30 havo

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