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Mobil Delvac Extreme synthetic 15w-40 #5458709 06/20/20 06:30 PM
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Capt Offline OP
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Is this new? Just noticed at walmart today, any voa/uoa/experiences? [Linked Image]
[Linked Image]

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458727 06/20/20 06:57 PM
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Cujet Offline
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Ohhhh, HTHS of 4.1, very nice.


People who count on their fingers should maintain a discreet silence.
Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458742 06/20/20 07:34 PM
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SR5 Offline
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Now that would be a shear stable oil, it comes in two grades 10W30 and 15W40 according to this Mobil web page
https://www.mobil.com/en-US/Commercial-Vehicle-Lube/pds/GL-XX-Mobil-Delvac-Extreme

Both are API CK-4, ACEA E7 & E9, plus many OEMs, both have a strong TBN of 10.3

10W30 HTHS = 3.6 cP, KV100 = 11.8 cSt,
15W40 HTHS = 4.1 cP, KV 100 = 14.3 cSt,

They don’t mention ZDDP levels, but the 15W40 is API SL/SM rated, while the 10W30 is not. Given that Phos levels (from ZDDP) are more restricted for 30 grades than 40 grades, I read this as these being higher ZDDP oils. ZDDP is an anti-wear agent that protects the metal, but also an antioxidant that protects the oil itself. A VOA would be interesting.

The CCS limit for both those winter grades (10W and 15W) is 7000 cP (at -25 C and -20 C respectively), and they test out to be 6600 and 6100 respectively. This is getting close to the upper limits, which suggest to me that thicker base oil was used for the viscosity, and less polymer VII. So I would expect high shear stability and low Noack volatility.

All this on a synthetic base, says a very strong oil with a long life. Which is what Mobil is selling

Quote
Mobil Delvac Extreme is formulated with synthetic basestocks and a boosted additive system tailored to deliver extended performance for up to two times beyond OEM recommended oil drain intervals. The proprietary formulation delivers excellent wear protection, exceptional oxidation stability, and outstanding TBN retention. Mobil Delvac Extreme FE also provides outstanding resistance to oil consumption, oxidation, corrosive and abrasive wear, and high temperature deposits.


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458746 06/20/20 07:54 PM
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LubricatusObsess Offline
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Hmmm....wonder if this is an add-on to the 5W-40's, or an acknowledgement they ain't makin' it in shear stability and plan to move away from them??

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458748 06/20/20 07:58 PM
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wemay Online Happy
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Capt, what store did you find this in? That would look real nice filling the sump of my Santa Fe Turbo.


19 Passat Wolfsburg 2.0 TSi: Castrol Edge LL 0W-20
13 Santa Fe Sport 2.0T: Castrol GTX Magnatec 5W-30
Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458753 06/20/20 08:04 PM
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That 10W30 would have to be very close to a monograde


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Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458772 06/20/20 08:29 PM
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Capt Offline OP
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This jug was In Stuart, Fl. WM in FL seems to have trouble selling synthetic diesel oils, I bought some mobil 1 TDT 5w-40 cheap and noticed delo 5w-40 & t6 5w-40 heavily discounted. Seems diesel owners are just buying 15w-40 for $11 gallon vs $20 for 5w-40 syn's. Seeing t6 in 15w-40 & this delvac syn 15w-40 shows that they are trying to find a market. Most truck manuals call for 15w-40 above freezing anyway.. I did notice a boat that I work on specifically requires Mobil ESP 5w-40 for the MAN common rail diesels, Im guessing HTHS is excellent with the Mobil esp 5w-40..

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458781 06/20/20 08:44 PM
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LubricatusObsess Offline
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Originally Posted by Capt
This jug was In Stuart, Fl. WM in FL seems to have trouble selling synthetic diesel oils, I bought some mobil 1 TDT 5w-40 cheap and noticed delo 5w-40 & t6 5w-40 heavily discounted. Seems diesel owners are just buying 15w-40 for $11 gallon vs $20 for 5w-40 syn's. Seeing t6 in 15w-40 & this delvac syn 15w-40 shows that they are trying to find a market. Most truck manuals call for 15w-40 above freezing anyway.. I did notice a boat that I work on specifically requires Mobil ESP 5w-40 for the MAN common rail diesels, Im guessing HTHS is excellent with the Mobil esp 5w-40..


A large part of the world remains above 14 deg F (CCT), borderline pumpability temperature of 15W-40 mineral oil, and much of the population lives in these temperate climates. So, I suspect there will be a good market for a highly shear-stable synthetic 15W-40, instead of the niche market for 5W-40 for the weird guys like me that live in the American Siberia.

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458789 06/20/20 09:09 PM
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wemay Online Happy
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Originally Posted by Capt
This jug was In Stuart, Fl. WM in FL seems to have trouble selling synthetic diesel oils, I bought some mobil 1 TDT 5w-40 cheap and noticed delo 5w-40 & t6 5w-40 heavily discounted. Seems diesel owners are just buying 15w-40 for $11 gallon vs $20 for 5w-40 syn's. Seeing t6 in 15w-40 & this delvac syn 15w-40 shows that they are trying to find a market. Most truck manuals call for 15w-40 above freezing anyway.. I did notice a boat that I work on specifically requires Mobil ESP 5w-40 for the MAN common rail diesels, Im guessing HTHS is excellent with the Mobil esp 5w-40..

Thanks


19 Passat Wolfsburg 2.0 TSi: Castrol Edge LL 0W-20
13 Santa Fe Sport 2.0T: Castrol GTX Magnatec 5W-30
Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458810 06/20/20 09:53 PM
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I tend to mix 5w-40 and 15w-40, I like a synthetic 15w-40 a lot!


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Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458813 06/20/20 09:57 PM
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What was the price? Nice find!

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458826 06/20/20 10:42 PM
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Capt Offline OP
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$19.47

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458828 06/20/20 10:45 PM
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Nice sauce for under $20 !

Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458882 06/21/20 01:19 AM
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only one gallon for 20 bucks?!
That's not even enough for an OCI
crzy


06 Lexus IS350- Wife
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Say "no" to Turbo!
Re: Mobil Delvac Extreme synthetic 15w-40 [Re: Capt] #5458923 06/21/20 05:41 AM
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LeoStrop Offline
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I wish i could find 15W40 Synthetic around here, that looks like a great oil for old engines like mine.

Both VI infos are wrong, it should be 139 (10W30) and 136(15W40).

I like the ingredient description on the back. thumbsup


Chevrolet Kadett EFI '94 (Neat ethanol) - Shell Rimula RT4X 15W40

Honda Fit '09 (FlexFuel) - Shell Helix HX8 5W30 > Motul 6100 SYN-nergy 5W30
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