Just saw this oil at Walmart today.

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Jun 12, 2015
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Properties and Specifications​

PropertyMOBIL DELVAC HDEO 10W-30MOBIL DELVAC HDEO 15W-40
GradeSAE 10W-30SAE 15W-40
Ash, Sulfated, mass%, ASTM D87411
Cold-Cranking Simulator, Apparent Viscosity @ -20 C, mPa.s, ASTM D5293 5900
Cold-Cranking Simulator, Apparent Viscosity @ -25 C, mPa.s, ASTM D52936550
Flash Point, Cleveland Open Cup, °C, ASTM D92225225
Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D46833.64
Kinematic Viscosity @ 100 C, mm2/s, ASTM D44512.014.2
Kinematic Viscosity @ 40 C, mm2/s, ASTM D44582112
Mini-Rotary Viscometer, Yield Stress, -25 C, Pa, ASTM D4684 20000
Mini-Rotary Viscometer, Yield Stress, -30 C, Pa, ASTM D468422600
Pour Point, °C, ASTM D97-36-27
Specific Gravity, 15.6 C/15.6 C, ASTM D40520.8670.874
Total Base Number, mgKOH/g, ASTM D28961010
Viscosity Index, ASTM D2270140132
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Joined
Jan 7, 2022
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Chicago
the 15w40 was ten dollars at my walmart. I would have bought it and use it but its april and snowed yesterday and the 15 day forcast still says freezing temps at night in chicago

maybe I should listen to the wife and move to hawaii LOL
 
Joined
Aug 7, 2018
Messages
123
Location
WI
the 15w40 was ten dollars at my walmart. I would have bought it and use it but its april and snowed yesterday and the 15 day forcast still says freezing temps at night in chicago

maybe I should listen to the wife and move to hawaii LOL
15w40 is generally acceptable down to 20F, is it not? That's what I've always understood. Personally, I wouldn't have an issue running a syn blend or full syn version down to 0F.
 
Joined
Aug 7, 2021
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I saw this at Walmart in New Mexico today. Today they had Delvac 1300 along side the new stuff. Would this be ok to use in my LMM Duramax if they are out of the 1300
 
Joined
Dec 29, 2010
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Paramount, California
It looks like Mobil has renamed Mobil Delvac 1300 Super as Mobil Delvac HDEO.

However, this also seems more to be an international name rather than a US name.
 
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Joined
Dec 29, 2010
Messages
5,890
Location
Paramount, California
No, this is a different product, Delvac 1300 Super still exists, and it's mixed fleet oil, this is diesel only oil and has to have above 1000ppm of phos because it's got the ford approval.
I see.

Detailed specs for Delvac HDEO:


Detailed specs for Delvac 1300 Super:


Delvac HDEO has a more stout add pack at the expense of not having a certification for API SN but adds the Ford certification as you said.

Delvac HDEO 15W-40 CK-4 is slightly thinner than Delvac 1300 Super 15W-40 in terms of base oil. This translates as better wear protection for Delvac 1300 Super, but Delvac HDEO could possibly make up for it through its more stout add pack.

Estimated base-oil viscosity and VII content of selected oils
 
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