Mobil 1 HM vs Mobil 1 question

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Do you think there are any real differences between the SN version of Mobil 1 HM 5w30 vs Mobil 1 5w30, besides extra seal conditioners and higher viscosity on the HM side?
 
The regular M1 5W30 has
KV 40 = 61.7 cSt
KV100 = 11.0 cSt
HTHS = 3.1 cP
Sulphated Ash = 0.8 Wt%
Phos = 0.08 Wt%
PP = -42 C
FP = 230 C
Density = 0.855

The M1 5W30 HM has
KV 40 = 72 cSt
KV100 = 12.1 cSt
HTHS = 3.1 cP
Sulphated Ash = ? Wt%
Phos = ? Wt%
PP = -39 C
FP = 230 C
Density = 0.856

They are both now API SN, so I assume their Zinc and Phos limits would be similar.

Interesting they both have the same HTHS, but the HM has a higher KV100. Unless you need extra seal conditioners, it makes me prefer the regular M1 5W30.

My pick would be the M1 10W30 HM (for temperatures above 0F)
KV 40 = 78
KV100 = 12.1
HTHS = 3.5
PP = -39 C
FP = 232 C
Density = 0.861

You get a lot more HTHS for your KV100 and therefore less polymer VII in your oil.
 
They both have the same ZDDP, right at the SN limits. https://mobiloil.com/~/media/amer/us/pvl/files/pdfs/mobil-1-oil-product-specs-guide.pdf
HM is a little thicker with more seal conditioners, thats about it.
 
Originally Posted By: oil_film_movies
They both have the same ZDDP, right at the SN limits. https://mobiloil.com/~/media/amer/us/pvl/files/pdfs/mobil-1-oil-product-specs-guide.pdf
HM is a little thicker with more seal conditioners, thats about it.


Thanks for specs on that, quite informative and dumbed down. Lol
 
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