HTHS testing? 🤔

[K2K2]

Aside from the manufacturer pages and documents, what is the method that the average Joe could use to get the HTHS of an oil?

We don't have access to multimillion dollar equipment obviously… But is there an oil testing lab that anyone knows about that could do it?

 

[ZeeOSix]

If the oil specs aren't listed by the manufacturer, you can most of time get the HTHS viscosity if you contact them.

What oil is it?

 

[kschachn]

I have difficulty in getting overly interested in what would be minor variations based upon what is a minimum HT/HS dictated by an approval. I know that VW 504 00 requires a minimum 3.5, so that's what I go with. If I was greatly concerned that it wasn't sufficient I'd go with a 50-grade oil. Or purchase a brand that does provide the information. I'm not too brand centric in light of what an approval provides.

You've advocated for Amsoil in the past, don't they provide this information?

 

[Pablo]

Is this in regard to used oil, or not trusting the manufacturer/bottler?

 

[Ed_Flecko]

New oil sample or used oil sample???

Maybe I'm "painting with a broad brush", but don't the "better" oils provide this in their PDS? I know HPL does, Their PDS clearly lists the High Temp High Shear Visc, cP, according to the ASTM D5481 test standards. I'll bet Amsoil, RedLine, etc., also do?

Ed

 

[Japanese]

He's asking how to check it for himself. Similarly how you check water pH with testing strips. Most likely he askes for a lab testing similar to VOA and UOA.

 

[ZeeOSix]

He's asking how to check it for himself. Similarly how you check water pH with testing strips. Most likely he askes for a lab testing similar to VOA and UOA.

Could have one in the garage, and it's in stock.

https://cannoninstrument.com/hths-series-ii-115v-50-60-hz9728-c35.html

Here's another ... quite few turn-key test machines are on the market.

https://www.lab-testkit.com/Lubrica...nd-High-Shear-Viscometer-HTHS-pd42972549.html

 

[Pablo]

He's asking how to check it for himself. Similarly how you check water pH with testing strips. Most likely he askes for a lab testing similar to VOA and UOA.

Hmmm........maybe you stopped reading.

"But is there an oil testing lab that anyone knows about that could do it?"

 

[kschachn]

Hmmm........maybe you stopped reading.

"But is there an oil testing lab that anyone knows about that could do it?"

Of course there is.

 

[rollins.]

One could request a quote here (no published price list it seems):
https://www.savantlab.com/wp-content/uploads/2023/05/Savant-Labs-Test-List-by-Category.pdf
https://www.savantlab.com/viscosity-testing-and-shear-stability-testing/

In the TDS one could see only the fresh oil value (if published at all) , and since

HTHS viscosity are measured with methods
such as ASTM D4683 (Tapered Bearing Simulator), D4741/CEC
L-36-90 (Tapered Plug Viscometer), D5481 (Multicell Capillary
Viscometer) or with an ultrahigh shear rate viscometer (USV)

...they probably produce slightly different results.

https://koehlerinstrument.com/wp-co...-Multi-Grade-Polymer-Thickened-Lubricants.pdf