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expiredBigPapa2 posted Mar 4, 2025 4:09 AM

Mobil 1 FS European Car Formula Full Synthetic Motor Oil 0W-40, 5 Quart (Pack of 3) - Walmart.com $68.88

$69

$90

23% off
Walmart
13 Comments
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decent price on euro 0w-40 mobile 1 oil. rarely goes on sale or have coupons these days. comes out to just under $23 for a 5 qt jug.

https://www.walmart.com/ip/Mobil-.../742890295
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decent price on euro 0w-40 mobile 1 oil. rarely goes on sale or have coupons these days. comes out to just under $23 for a 5 qt jug.

https://www.walmart.com/ip/Mobil-.../742890295

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Model: Mobil 1 FS European Car Formula Full Synthetic Motor Oil 0W-40, 5 Quart (Pack of 3)

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13 Comments

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Mar 4, 2025 5:31 AM
74 Comments
Joined Dec 2022
MellowRecess8806Mar 4, 2025 5:31 AM
74 Comments
Anyone know if I can use this in my F350 diesel? I use 5w40
Mar 4, 2025 5:57 AM
375 Comments
Joined Jan 2015
CreteincMar 4, 2025 5:57 AM
375 Comments
Quote from MellowRecess8806 :
Anyone know if I can use this in my F350 diesel? I use 5w40
5w-40 is on sale too
Original Poster
Mar 5, 2025 12:52 AM
688 Comments
Joined Sep 2010
BigPapa2
Original Poster
Mar 5, 2025 12:52 AM
688 Comments
Quote from MellowRecess8806 :
Anyone know if I can use this in my F350 diesel? I use 5w40
0w40 and 5w40 are interchangeable on most vehicles
Mar 5, 2025 1:07 AM
1.7K Comments
Joined May 2004
FlashX83Mar 5, 2025 1:07 AM
1.7K Comments
Quote from MellowRecess8806 :
Anyone know if I can use this in my F350 diesel? I use 5w40
This doesn't list the API CJ-4 spec that your manual probably recommends.

Shell Rotella has a rebate right now though and should end up less expensive than this deal.
Mar 5, 2025 2:18 AM
547 Comments
Joined Dec 2019
Dealsfinder2019Mar 5, 2025 2:18 AM
547 Comments
Quote from BigPapa2 :
0w40 and 5w40 are interchangeable on most vehicles
Yes and no. I wouldn't risk it. As some engines are picky and going to thick or too thin will cause irreparable consequences or costly repairs
Mar 5, 2025 6:34 AM
90 Comments
Joined Oct 2014
treyuniversity89Mar 5, 2025 6:34 AM
90 Comments
Quote from Dealsfinder2019 :
Yes and no. I wouldn't risk it. As some engines are picky and going to thick or too thin will cause irreparable consequences or costly repairs
It's the same weight at operating temperature
Mar 5, 2025 10:40 AM
142 Comments
Joined Nov 2019
SlickMint232Mar 5, 2025 10:40 AM
142 Comments
Thanks, this is the correct oil for the 6.2 Hellcat.

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Mar 5, 2025 7:10 PM
389 Comments
Joined Mar 2024
TealThread549Mar 5, 2025 7:10 PM
389 Comments
It shows $84 for me. From what I found before, the Euro was mostly ensuring longer oil changes miles. There are letters to make sure oils meet the minimum specs for your car. The numbers are how thick the oil is cold and hot. Many newer cars use variable lifters and so it does matter if you put in say x-w30 or x-w40 in a motor that has 16 or 20 as it's top number. It might throw a check engine light on your dash because it can't go into eco mode like it wants. Turbo cars and GDI cars need oils that don't cause knocking or sludge problems as much. It's not as easy as the 80's where any ol' oil was good to go.
Mar 5, 2025 7:17 PM
1.9K Comments
Joined Aug 2005
keanefan72Mar 5, 2025 7:17 PM
1.9K Comments
$84 for me. 🧢
Mar 5, 2025 7:26 PM
566 Comments
Joined Nov 2011
hagglerMar 5, 2025 7:26 PM
566 Comments
83.88
Mar 5, 2025 9:10 PM
296 Comments
Joined May 2006
Wingback73Mar 5, 2025 9:10 PM
296 Comments
Quote from TealThread549 :
It shows $84 for me. From what I found before, the Euro was mostly ensuring longer oil changes miles. There are letters to make sure oils meet the minimum specs for your car. The numbers are how thick the oil is cold and hot. Many newer cars use variable lifters and so it does matter if you put in say x-w30 or x-w40 in a motor that has 16 or 20 as it's top number. It might throw a check engine light on your dash because it can't go into eco mode like it wants. Turbo cars and GDI cars need oils that don't cause knocking or sludge problems as much. It's not as easy as the 80's where any ol' oil was good to go.
Cold viscosity can almost never be low enough. Warm viscosity is more important, but if you look at how engine oil pumps actually work, you almost can't go too low there either since the goal is ensure you never exceed the oil pump pressure bypass level. You go too high (and end up bypassing the oil pump), but that is going to cause a lack of oil to the top of the engine during higher revolutions moreso than having an impact on variable lifters (see below).
Where you CAN go seriously wrong is by getting the wrong additive package. Different engines have different materials in the block, sleeve, rings, etc, and those different materials require different additives. For example, the old 4.0L Jeep engines needed a high zinc content with most recommending a diesel oil (I use Rotella T6), while my BMW uses 0W-40 Mobil 1 that is wholly inappropriate for my Lincoln which has different internals and needs different additives.

Side note, that BMW is dual variable timing - factory recommended 10W-60 originally then switched to 5W-30. Both activate the cam timing and other hydraulics just fine...
Mar 5, 2025 9:14 PM
296 Comments
Joined May 2006
Wingback73Mar 5, 2025 9:14 PM
296 Comments
Quote from BigPapa2 :
0w40 and 5w40 are interchangeable on most vehicles
0w40 and 5w40 are interchangeable on most vehicles owned by people who don't recognize the other differences in the oil such as additive packages
Original Poster
Mar 5, 2025 11:07 PM
688 Comments
Joined Sep 2010
BigPapa2
Original Poster
Mar 5, 2025 11:07 PM
688 Comments
Quote from DouglasBaker :
0w40 and 5w40 are interchangeable on most vehicles owned by people who don't recognize the other differences in the oil such as additive packages
I should have said as long as they have the same specs. Both Mobile 1 5w40 and 0w40 have the same exact certificates and specs for my vw. To me that sounds like they have the same additives and the difference is that the 0 has lower viscosity. My VWs manual actually says to normally use 5w40 but to use 0w40 in cold climates. Now if you compare a euro mobile1 0w40 to a shell 0w40 of course they will have different additives if they have different specs. Let's not complicate oil.

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