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#4520251 - 09/19/17 12:19 PM Shell 15W40 HTHS
doolah02 Offline


Registered: 04/27/14
Posts: 151
Loc: FL USA
Anyone know the HTHS for Shell T4 15W40 Oil?

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#4520291 - 09/19/17 01:10 PM Re: Shell 15W40 HTHS [Re: doolah02]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2376
Loc: Balearic Islands , Spain
15W-40 means it's gotta be 3.7 or higher, it's somewhere in the 4.1 - 4.2 range if i remember correctly, which is about the normal for a 15W-40 HDEO.
_________________________
1975 Ford Capri II Ghia 3000 V6, - Valvoline VR1 20W-50
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Shell Rimula R4X 15W-40 HDEO.

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#4520317 - 09/19/17 01:33 PM Re: Shell 15W40 HTHS [Re: doolah02]
doolah02 Offline


Registered: 04/27/14
Posts: 151
Loc: FL USA
Thank you, it seems that most oil companies won't give HTHS specs for their oil.

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#4520323 - 09/19/17 01:40 PM Re: Shell 15W40 HTHS [Re: FordCapriDriver]
Kamele0N Offline


Registered: 02/09/15
Posts: 2038
Loc: Slovenia
Originally Posted By: FordCapriDriver
15W-40 means it's gotta be 3.7 or higher, it's somewhere in the 4.1 - 4.2 range if i remember correctly, which is about the normal for a 15W-40 HDEO.


Is this the same for API certified oils?

ACEA has hths >3.7 for the 15w40....

Ocording to VOA subforum here....oils from over the pond all tend to have lower hths numbers...
_________________________
2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD various 10w40

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#4520339 - 09/19/17 01:58 PM Re: Shell 15W40 HTHS [Re: doolah02]
doolah02 Offline


Registered: 04/27/14
Posts: 151
Loc: FL USA
I bought this oil for generator use, hope my generators like it.

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#4520381 - 09/19/17 02:56 PM Re: Shell 15W40 HTHS [Re: Kamele0N]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2376
Loc: Balearic Islands , Spain
Originally Posted By: Kamele0N
Originally Posted By: FordCapriDriver
15W-40 means it's gotta be 3.7 or higher, it's somewhere in the 4.1 - 4.2 range if i remember correctly, which is about the normal for a 15W-40 HDEO.


Is this the same for API certified oils?

ACEA has hths >3.7 for the 15w40....

Ocording to VOA subforum here....oils from over the pond all tend to have lower hths numbers...

I'm quite sure? 3.5 for 0W,5W,10W-40 and 3.7 for 15W,20W,25W and SAE 40 correct?
_________________________
1975 Ford Capri II Ghia 3000 V6, - Valvoline VR1 20W-50
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Shell Rimula R4X 15W-40 HDEO.

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#4520382 - 09/19/17 03:00 PM Re: Shell 15W40 HTHS [Re: doolah02]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2376
Loc: Balearic Islands , Spain
Originally Posted By: doolah02
Thank you, it seems that most oil companies won't give HTHS specs for their oil.



Ofcourse they don't.
We, those who know what HTHS among other things, are 0.1% of their customers, not even that probably, why disclose it if 99.9% of people don't even know what it is.
_________________________
1975 Ford Capri II Ghia 3000 V6, - Valvoline VR1 20W-50
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Shell Rimula R4X 15W-40 HDEO.

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#4520470 - 09/19/17 04:46 PM Re: Shell 15W40 HTHS [Re: doolah02]
SR5 Offline


Registered: 07/07/15
Posts: 4456
Loc: Down Under
Probably something like 4.0 to 4.3 cP


Edited by SR5 (09/19/17 04:52 PM)
_________________________
Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154

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#4520521 - 09/19/17 05:50 PM Re: Shell 15W40 HTHS [Re: doolah02]
Panzerman Offline


Registered: 12/16/06
Posts: 4203
Loc: Port Orange, Florida
Originally Posted By: doolah02
I bought this oil for generator use, hope my generators like it.


Your generator will love it.
Generators run at constant rpm or close, in consistent environment. Just about anything will be fine in there. If it's fine in a turbo charger diesel for 10,000 miles it's fine in a generator for 80-100 hours.
_________________________

2006 Dodge Ram 2500 Hemi 4x4
2016 Dodge Challenger Scat Pack

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#4525794 - 09/25/17 01:27 PM Re: Shell 15W40 HTHS [Re: doolah02]
boraticus Online   content


Registered: 04/19/09
Posts: 2905
Loc: Canada
Found these stats online. Unfortunately, many popular oils aren't on this list:

HTHS - High temperature High shear A relatively new oil test/specification, the oil is subjected to high temperature 150C and is mechanically sheared at 1 x 10^6 per second. A value of 2.8 or is considered the minumum for normal bearing wear. Here are some HTHS numbers on well known oils, the higher the number the more shear stable the oil; 4's and 5's are excellent numbers and demonstrate basestock quality e.g. Silkolene and Motul.

Mobil 1 0W40 HTHS 3.6

Castrol RS 10w-60 HTHS 3.7

Castrol RS 0w-40 HTHS 3.7

Silkolene PRO S 5w-40 HTHS 4.07

Motul 300V 10w-40 HTHS 4.19

Motul 300V 5w-40 HTHS 4.51

Redline 5w40 HTHS 4.6

Redline 10W40 HTHS 4.7

Mobil 1 15w-50 HTHS 5.11

Silkolene PRO S 10w-50 HTHS 5.11

Silkolene PRO R 15w-50 HTHS 5.23

Motul 300V 15w-50 HTHS 5.33

Redline 15W50 HTHS 5.8

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