In an oil convo/post over on a VW forum I'm active on and this came up....the HTHS of the M1 Euro 5W40 is 3.9 and only 3.6 for 0W40 (not listed on PDS for whatever reason so found it here). Why again is everyone obsessed with the 0W40 vs. the 5W40? Is that 3.6 not accurate?
M1 0W vs. 5W40 HTHS
- Thread starter TiGeo
- Start date
I am bit taken back that the new SP has such a high KV100 and such low HTHS. But, where is the source of 3.9?
The 3.9 is on the M1 site's PDS for the 5W40.
I can't find anything that lists the current HTHS viscosity, the old SN version of FS 0W40 was 3.6 but the KV100 was only 12.9 the new version is 13.8, the HTHS of 3.9 for 5W40, I have only found on a French market PDS for an older SN product that may or may not be the same thing as the older FS/FSX2 SN formulation we had here that had a KV100 of 13.7, while the KV100 of the new US market version of FS 5W-40 is 13.2. Mobil 0W-40 is probably the most recommended because for years it was Mobil's only US market A3/B4 oil with a wide range of Euro approvals, the FS(X2) 5W-40 product has only been around for around 2 years and they very recently added FS 5W-30 to the US market, so I guess old habits just never die.
even Redlines REAL synthetics using lighter base oils have lesser specs IMO so use the oils with a bigger first # as long as your ambient temp tolerates it. i use Redline 15-50 in my "hopped up" 2001 TT about 300 HP + TQ + my boost-vac gauge shows more vac than the lighter real synthetics i used in the past + although only just over 50 thou my engine is prolly loose so the heavier oil @ running temp is a good thing IMO!! your $$$$ your choice. i live in Pa + the car rarely is used in very cold temps!!
Gotta love this. 
“BITOG, where keyboard warriors know better than the blender what the specs of their products are.”
“BITOG, where keyboard warriors know better than the blender what the specs of their products are.”
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- 4,118
Some blenders don't even know their own specs. Websites and pdfs are rarely, slowly, and usually poorly updated... then they have some customer service support clown give questionable info.
Some live in cold climates or suffer winters and might want a 0w over 5w.
I do prefer the HTHS of the 5w's over the 0w's. For some, its difficult to go from the OE recommended 5w20 or 0w20 to a 5w40, which leaves 'em the 0w40 as an option, or a high hths 0w30.
cst's are interesting:
www.mobil.com
www.mobil.com
www.mobil.com
www.mobil.com
Wow:
www.mobil.com
Some live in cold climates or suffer winters and might want a 0w over 5w.
I do prefer the HTHS of the 5w's over the 0w's. For some, its difficult to go from the OE recommended 5w20 or 0w20 to a 5w40, which leaves 'em the 0w40 as an option, or a high hths 0w30.
cst's are interesting:
Mobil 1™ FS 0W-40| Mobil™
Mobil 1™ FS 0W-40 motor oil is the result of decades of collaborative development with major car manufacturers and the application of the latest lubrication technology. It helps provide unsurpassed performance under very demanding driving conditions.
www.mobil.com
Mobil 1™ FS 5W-40| Mobil™ Motor Oils
Mobil 1™ FS 5W-40 motor oil is the result of decades of collaborative development with major car manufacturers and the application of the latest lubrication technology. It helps provide unsurpassed performance under very demanding driving conditions.
www.mobil.com
Mobil 1™ Turbo Diesel Truck 5W-40| Mobil™ Turbo Diesel Oil
Mobil 1™ Turbo Diesel Truck 5W-40 is a fully synthetic diesel oil that helps extend engine life for modern diesel engines operating in severe applications.
www.mobil.com
Mobilgard™ 1 HSD 5W-40
Mobilgard™ 1 HSD 5W-40 fully synthetic diesel engine oil is uniquely formulated to provide outstanding wear protection in the most severe operating environments, including extreme temperatures and high-load conditions.
www.mobil.com
Wow:
Mobil Delvac 1™ ESP 0W-40 | Mobil Delvac™ Engine Oils
Discover how Mobil Delvac 1™ ESP 0W-40 advanced full synthetic diesel engine oils deliver extended drain capability, fuel economy potential and exceptional low-temperature performance.
www.mobil.com
Not sure I understand the point of your post...is this pointed at me asking the question or someone else?Gotta love this.
“BITOG, where keyboard warriors know better than the blender what the specs of their products are.”
D
Deleted member 89374
Pesky XOM, they have spies everywhere! No-one is safe.
Nope, in general. At times it’s been me, too, so this was just sharing a joke with those who can laugh at themselves.
Which PDS? The current US one shows no HTHS right now.
Shel_B
Site Donor 2023
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That's true. I found a guy from Mobil hiding under my desk.Pesky XOM, they have spies everywhere! No-one is safe.
I found a representative from SOPUS hiding in my toaster this morning.
Why not try the M1 5W-40 with the higher hths if the oil meets or exceeds what's specified in the OM?
I may try M1 5W-40 if we are driving to Vegas with a loaded car in the summer. That's the only time I have tried 40. Meanwhile my favorite M1 is M1 EP 10W-30.
M1 FS 0W-40 burned in my car. I mentioned it in another thread but Castrol Euro 0W-40 didn't. I think Noack wise they are pretty close also. Must be something in the base oil and/or the add pack combined with the given engine since many others have no issues with it.
I have one more jug of M1 FS 0W-40 in the garage that's going in next week for the summer and a possible Vegas trip and will have one more piece of data. My FS are 2-3 years old in case the formulation has changed.
I may try M1 5W-40 if we are driving to Vegas with a loaded car in the summer. That's the only time I have tried 40. Meanwhile my favorite M1 is M1 EP 10W-30.
M1 FS 0W-40 burned in my car. I mentioned it in another thread but Castrol Euro 0W-40 didn't. I think Noack wise they are pretty close also. Must be something in the base oil and/or the add pack combined with the given engine since many others have no issues with it.
I have one more jug of M1 FS 0W-40 in the garage that's going in next week for the summer and a possible Vegas trip and will have one more piece of data. My FS are 2-3 years old in case the formulation has changed.
Last edited:
Does someone know what the heck this product is? Yet another 0W-40. Triple action but mostly European approvals. Not the same specs as FS SP or SN. Google takes me to it depending on the search terms and how you enter the Mobil site. It must be some regional product? Different page from FS. They might have more 0W-40s than the rest of the majors combined.
www.mobil.com
Compare to
www.mobil.com
Mobil 1™ 0W-40
Mobil 1™ Triple Action Power+ is the ultimate full synthetic engine oil delivering outstanding engine Performance, Protection, and Cleanliness with the added benefit of Fuel Economy.
www.mobil.com
Compare to
Mobil 1™ FS 0W-40| Mobil™
Mobil 1™ FS 0W-40 motor oil is the result of decades of collaborative development with major car manufacturers and the application of the latest lubrication technology. It helps provide unsurpassed performance under very demanding driving conditions.
www.mobil.com
I've only ever seen the gold jugs like used for Mobil1 sold outside the North American market.Does someone know what the heck this product is? Yet another 0W-40. Triple action but mostly European approvals. Not the same specs as FS SP or SN. Google takes me to it depending on the search terms and how you enter the Mobil site. It must be some regional product? Different page from FS. They might have more 0W-40s than the rest of the majors combined.
Mobil 1™ 0W-40
Mobil 1™ Triple Action Power+ is the ultimate full synthetic engine oil delivering outstanding engine Performance, Protection, and Cleanliness with the added benefit of Fuel Economy.
Compare to
Mobil 1™ FS 0W-40| Mobil™
Mobil 1™ FS 0W-40 motor oil is the result of decades of collaborative development with major car manufacturers and the application of the latest lubrication technology. It helps provide unsurpassed performance under very demanding driving conditions.
For what market did you find the Jug? There's no PDS available for the Jug. The PDS for the other link is dated 4/24/23.Does someone know what the heck this product is? Yet another 0W-40. Triple action but mostly European approvals. Not the same specs as FS SP or SN. Google takes me to it depending on the search terms and how you enter the Mobil site. It must be some regional product? Different page from FS. They might have more 0W-40s than the rest of the majors combined.
Mobil 1™ 0W-40
Mobil 1™ Triple Action Power+ is the ultimate full synthetic engine oil delivering outstanding engine Performance, Protection, and Cleanliness with the added benefit of Fuel Economy.
Compare to
Mobil 1™ FS 0W-40| Mobil™
Mobil 1™ FS 0W-40 motor oil is the result of decades of collaborative development with major car manufacturers and the application of the latest lubrication technology. It helps provide unsurpassed performance under very demanding driving conditions.
