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#4283079 - 12/23/16 09:19 AM Mobil 1 0w40 7708 miles '01 Volvo V70XC
Astro_Guy Offline


Registered: 07/30/15
Posts: 290
Loc: Pennsylvania
This is the new 0w40 formulation with only three builders approvals listed on the back of the jug. The older sample shown is Mobil 1 5w30 HM. Note the very minimal difference in viscosity.

_________________________
2010 Honda Civic, 88K miles, 0w20 M1 EP
2001 Volvo V70XC, 214K miles, 0w40 M1

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#4283104 - 12/23/16 09:47 AM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: Astro_Guy]
Astro14 Offline


Registered: 10/10/10
Posts: 7627
Loc: Virginia Beach
Those are great results!

I've had very good results with the same oil in the same engine. Stick with that 0W40!
_________________________
32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 TGMO

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#4283105 - 12/23/16 09:49 AM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: Astro_Guy]
69GTX Offline


Registered: 09/23/15
Posts: 2960
Loc: Connecticut
While this oil lost the LL-01 approval, it gained the RAT540 "cert" by testing out as the highest rated single oil ever....lol.

Must have been about a quart of the old 5w-30 HM in that UOA as magnesium shouldn't show up in M1 0w-40 at more than approx 15 ppm. Quite a large drop in Ca (-900 ppm) and Boron (-180 ppm) that would only be about 50% attributed to a leftover 5w-30 quart. Still tests out good though. You're right about the viscosity having dropped quite a bit. I don't think I've seen a UOA of M1 0w-40 dropping into the 10's after 5K-10K miles. This came close.

VOA on FS version
_________________________
----------------

2002 Lincoln Cont 4.6L 74K /QSUD 5w30/FL820s
1999 Camaro SS M6 /18K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs gone.

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#4283181 - 12/23/16 10:56 AM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: 69GTX]
Astro_Guy Offline


Registered: 07/30/15
Posts: 290
Loc: Pennsylvania
Originally Posted By: 69GTX
Must have been about a quart of the old 5w-30 HM in that UOA as magnesium shouldn't show up in M1 0w-40 at more than approx 15 ppm.

Okay - you caught me. The truth be told this sample consisted of five quarts of M1 0w40 and one quart of M1 5w30 HM.
_________________________
2010 Honda Civic, 88K miles, 0w20 M1 EP
2001 Volvo V70XC, 214K miles, 0w40 M1

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#4283183 - 12/23/16 10:57 AM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: 69GTX]
OVERKILL Offline


Registered: 04/28/08
Posts: 33719
Loc: Ontario, Canada
Originally Posted By: 69GTX
While this oil lost the LL-01 approval, it gained the RAT540 "cert" by testing out as the highest rated single oil ever....lol.

Must have been about a quart of the old 5w-30 HM in that UOA as magnesium shouldn't show up in M1 0w-40 at more than approx 15 ppm. Quite a large drop in Ca (-900 ppm) and Boron (-180 ppm) that would only be about 50% attributed to a leftover 5w-30 quart. Still tests out good though. You're right about the viscosity having dropped quite a bit. I don't think I've seen a UOA of M1 0w-40 dropping into the 10's after 5K-10K miles. This came close.

VOA on FS version


Flash point is way down, so I'm sure there's a fair bit of fuel in it, so that, plus the 5w-30 in the mix, definitely works to explain the viscosity loss.
_________________________
2016 Durango Limited
2016 Grand Cherokee SRT

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#4283340 - 12/23/16 02:30 PM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: Astro_Guy]
THX1138 Offline


Registered: 09/20/09
Posts: 43
Loc: Cape Fear, NC
I was relieved to see this UOA. With the horror stories I've read about PCV problems in Volvos, I was concerned that my 7500mi oci with Castrol 0W40 in our '03 V70 2.4T might be contributing to sludging up the PCV system. I feel better about it now, but still need to get the pcv system serviced soon. Car is approaching 170K miles, and I don't think it's ever been done.
_________________________
'04 Lexus ES330, M1 5w-30
'03 Volvo V70 2.4T, Castrol 0w-40
'64 Pontiac GTO, Brad Penn 10w-30

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#4283600 - 12/23/16 07:54 PM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: Astro_Guy]
69GTX Offline


Registered: 09/23/15
Posts: 2960
Loc: Connecticut
Originally Posted By: Astro_Guy
Originally Posted By: 69GTX
Must have been about a quart of the old 5w-30 HM in that UOA as magnesium shouldn't show up in M1 0w-40 at more than approx 15 ppm.

Okay - you caught me. The truth be told this sample consisted of five quarts of M1 0w40 and one quart of M1 5w30 HM.


Thanks for explaining that difference. I was just figuring it was due to old oil left behind from the previous oil change. Didn't think you were mixing fresh 5 qts + 1 qt. Very different add packs between the M1 0w-40 and their 20/30 grades. Because of that, I don't like to mix them. But like you, I have a 6 qt engine and always need 1 jug + 1 quart. So you either buy 5 jugs for 4 oil changes or toss in leftover quarts of "something" during each OCI.
_________________________
----------------

2002 Lincoln Cont 4.6L 74K /QSUD 5w30/FL820s
1999 Camaro SS M6 /18K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs gone.

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#4283770 - 12/24/16 12:09 AM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: OVERKILL]
zeng Online   content


Registered: 09/01/15
Posts: 1489
Loc: Malaysia
Originally Posted By: OVERKILL
Flash point is way down, so I'm sure there's a fair bit of fuel in it, so that, plus the 5w-30 in the mix, definitely works to explain the viscosity loss.


Obviously fuel dilution occurs in these 2 UOA's.

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#4284146 - 12/24/16 11:49 AM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: Astro_Guy]
KCJeep Offline


Registered: 06/30/11
Posts: 6768
Loc: Mahzurrah!
The results look good, unfortunately it also appears the Mobil bean counters have indeed gotten to the 0w40 that was the darling of BITOG for several years. Same thing with their HM oil prior to that.

Before somebody gets their undies in a wad, as a SOPUS fan I have noted with distress they have tinkered with several of their oils in the last year and not in a good way IMO.

Ironically it's Castrol who appears to have opened up the goodie box and has been loading up their oils in the last two years.

Never the less, good results here.
_________________________
04 Jeep Grand Cherokee 4.0 142k - Edge 0w40
09 Lincoln MKZ AWD 80k - Magnatec 5w30
12 KIA Sedona 75k - Edge 0w40
09 Ford Focus 123k - QSUD 5w30

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#4291322 - 01/02/17 02:11 PM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: THX1138]
zoli Offline


Registered: 05/22/11
Posts: 307
Loc: Hungary
Originally Posted By: THX1138
I was relieved to see this UOA. With the horror stories I've read about PCV problems in Volvos, I was concerned that my 7500mi oci with Castrol 0W40 in our '03 V70 2.4T might be contributing to sludging up the PCV system. I feel better about it now, but still need to get the pcv system serviced soon. Car is approaching 170K miles, and I don't think it's ever been done.

I learned very well in my light turbo charged cars: if I use only fully synthetic oil (Group III/III+ at least) => no worries about the healthy/clean condition of the throttle body or PCV system. I tested and works it with Mobil1 0W40, Mobil Super 3000 5W40, Shell Helix Ultra 5W40.
_________________________
2001 VOLVO S60 2.0t L5 A/T
233K+ M | B5204T2 | Total Q9KE 5W40 | Mahle OX149D | OCI 6K M

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#4291344 - 01/02/17 02:52 PM Re: Mobil 1 0w40 7708 miles '01 Volvo V70XC [Re: Astro_Guy]
Ohle_Manezzini Offline


Registered: 07/05/16
Posts: 666
Loc: Pindorama
Those mileages are easy on a fully synthetic.

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