Mobil Delvac ESP 5w40 vs M1 TDT 5w40

[dlundblad]

What are the differences? Why use one over the other?

I couldn’t find an answer that wasn’t almost 10 years old and I’m sure things have changed.

 

[53' Stude]

I believe m37charlie stated that if using low sulfur fuel this oil would be good to use.

 

[wpod]

I believe m37charlie stated that if using low sulfur fuel this oil would be good to use.

All automotive diesel is low sulfur is the U.S.

 

[Dodgetracker]

5W40 TDT​

Properties and Specifications​

	SAE 5W-40
Kinematic Viscosity @ 100 C, mm2/s, ASTM D445	13.7
Kinematic Viscosity @ 40 C, mm2/s, ASTM D445	83
Density, 15.6C, g/cm3, ASTM D4052	0.853
Flash Point, Cleveland Open Cup, °C, ASTM D92	234
Pour Point, °C, ASTM D97 -48 Mobil Delvac 1™ ESP 5W-40​ Properties and Specifications​ SAE 5W-40 Kinematic Viscosity @ 40 C, mm2/s, ASTM D445 84 Kinematic Viscosity @ 100 C, mm2/s, ASTM D445 13.8 Cold-Cranking Simulator, Apparent Viscosity @ -30 C, mPa.s, ASTM D5293 6510 Mini-Rotary Viscometer, Apparent Viscosity, -35 C, mPa.s, ASTM D4684 16800 Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D4683 3.8 Viscosity Index, ASTM D2270 150 Ash, Sulfated, mass%, ASTM D874 1 Total Base Number, mgKOH/g, ASTM D2896 12 Pour Point, °C, ASTM D97 -48 Flash Point, Cleveland Open Cup, °C, ASTM D92 233 Density, 15.6C, g/cm3, ASTM D4052 0.852

 

[53' Stude]

All automotive diesel is low sulfur is the U.S.

I know this. I can’t find thread where m37charlie mentioned this and maybe he was talking about different countries and their fuels

 

[JMJNet]

Looks like it is within the same tolerance from the data that is available above on both oils.
Which make sense, because they should be within the same specification.

Unfortunately, we would not know how it will behave once it is in your engine but the engine probably don't care, for either one.

 

[Bighorn2500]

Whichever can be found cheaper, and use the current rebate available.

I’ve ran both previously, I doubt my truck & tractors could tell the difference.

 

[Doug Hillary]

dlundblad,

the similarity is obvious and I was a long time user of Delvac 1 5w-40 - TDT in the US

For your interest I have used Delvac 1 LE 5W-30 in recent years- the details are below;

Vis 40C =69
Vis 100C =11.8
VI =168
SA =1
TBN =10
PP =-45C
FP =234C
Den =855

ACEA E6, E7, E9
API CJ-4/SN
MB 228.5/228.31/235.28
DD 93k218
CAT ECF-3
And several others

Is this lubricant available in the US?

Doug

 

[m37charlie]

Yes Doug, it is available in the US now. I use with great UOA results in my 09 BMW X5 35d which is is “emission system deficient”. Even before the “surgery”, the factory recommended C3 based oil (?LL08?) did very poorly as far as TBN and wear metals, due to NOx acidification in turn due to EGR.

 

[CleverUserName]

Yes Doug, it is available in the US now. I use with great UOA results in my 09 BMW X5 35d which is is “emission system deficient”. Even before the “surgery”, the factory recommended C3 based oil (?LL08?) did very poorly as far as TBN and wear metals, due to NOx acidification in turn due to EGR.

It’s discontinued. Replaced with Delvac ESP 5w30

 

[m37charlie]

If that’s true I am glad I have a decade’s worth LE and SHC 5W40.