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Silicone Shock Oil W vs cSt

Info provided by: www.twf8.ws

Which manufacturer use which rating?
Which manufacturers you can use same rating oil?
Only manufacturers using cSt as rating are using a world standard and can be mixed used.
Other ratings like W and WT differ from brand from brand as WT or W is not a world standard!

For shock absorber use, this is the comparison table when using LOSI,  ASSOCIATED and SERPENT some others silicone oil rated in "WT" "W" or are not labeled with a rating but just a number like 30/300

unofficial conversion values provided by Gene Hickerson USA
cSt Losi WT Associated WT
100 10 7.5
150 15 12.5
200 20 17.5
275 25 22.5
300 27.5 25
350 30 27.5
400 32.5 30
425 35 32.5
450 37.5 35
500 40 37.5

The 50 cSt steps between "cSt" rating are linear, where the 5 "WT" steps used in the "WT" rating are progressive compared to the real thickness of the oil.


 

Serpent oil (04-01-2005)
rating W cSt

20

107
25 207
30 370
35  626
40 1070
45 1449
50 2250


We tested this oil supplied by Serpent Benelux on 04-01-2005 in our labaratory and compared them with a calibration oil.of 100 cSt.

Conclusion:
  Serpent oil is way of linear with cSt rating



Xray silicone oil with Rheometer
09-10-2005

Rating cSt
100 106
150 179
200 248
250 292
300 354
350 381
400 441
450 475
500 542
600 625
700 702
800 799
900 913
1.000 1020
Differential usage  
2.000 2490
3.000 4270
5.000 9000
7.000 10500
10.000 13000
20.000 30000
30.000 39600
60.000 65000

Use the values above for your benefit and as a guideline.
TEAM Xray has improved their oil line values from December 2006 onwards.
They now have a new silicone oil supplier.
Xray oil provided by TEAM Xray Slovakia


MUGEN SEIKI

Jacco Koch measured 26-05-2008 with the rheometer the following serie of Mugen Seiki oils on request by a driver.

The Mugen Seiki values in cSt

 

These Mugen values are linear.

Use the values above for your benefit and as a guideline.


 

 

Kyosho

rating cSt
250 244
300 302
350 351
400 411
500 506

Use the values above for your benefit and as a guideline.


CORALLY

Jacco Koch measured 11-04-2008 with the rheometer the whole serie of Corally oils on request by a driver.
To make sure the measurments are constant Jacco has serie of oils he uses for a standard.
He measured twice the same oil and the values are very close and most of all linear.

 

Values for the standard measurements

 

Then he put the corally oil on the rheometer and measured them twice as usual.
One value in the range was off compared to whole line of steps.
He has compared the values to the Losi oils already measured before.

The Corally values in cSt


 


Associated silicone oil measured with Rheometer
09-10-2005
rating WT on bottle cSt cSt*
10 108 100
15 --* 150
20 208 200
25 286 275
30 373 350
35 454 425
40 525 500
45 - 575
50 707 650
55 - 725
60 725 800
70 960 900
80 1040 1000

Use the values above for your benefit and as a guideline.
* The value 15 Weights we measured was like water thickness and is probably a filling fault at the factory.
Altough the contents was silicone oil it was to thin for the 15 WT specs and can not be used for the shocks.
Associated oils were provided by Kendall Bennet from A-mainhobbies and Tony Penzincka from Tony Screws

*T he cyan colored values collum are provided by Kurt Menger from Team Assosiated R&D and are the values that will be curerntly mentioned on the bottles to give comparising with cSt values. (18-10-2007)


Trinity silicone oil measured with Rheometer
09-10-2005
rating cSt
30 337
35 376
40 505
45 497
50 658
55 568
60 799
70 757
90 974

Use the values above for your benefit and as a guideline.
Trinity oils were provided by Kendall Bennet from A-mainhobbies and Tony Penzincka from Tony Screws


Losi silicone oil measured with Rheometer
15-12-2005
rating cSt
15 110
17.5 158
20 243
22.5 243
25 294
27.5 345
30 381
32.5 397
35 459
37.5 477
40 546
45 657
50 886
60 844
70 970

Use the values above for your benefit and as a guideline.
Losi oils were provided byVolker Gerdes from BUGGY-SPORT.INFO


Currently we are measuring our oils with a RHEOMETER.
A sample of such a machine can be found here

This device is able to measure more accurat regardless the viscosity.
 

From September 2006 we measure all oils with a RHEOMETER.


SILICONE SHOCK OIL AND TEMPERATURE

Although everybody thinks silicone oil is not affected by temperature, we can wake you up out of that dream. 
When the same test is done @ 10 or @ 30 degrees Celsius we get other values!
Test result from our laboratory provid us with the following fist rule:

SILICONE SHOCK OIL AND TEMPERATURE

Although everybody thinks silicone oil is not affected by temperature, we can wake you up out of that dream. 
When the same test is done @ 10 or @ 30 degrees Celsius we get other values!
Test result from our laboratory provid us with the following fist rule:

Below some examples.

Silicone shock oil measured in Centistokes at various tempratures in Degrees Celsius (Rheometer)
Shock oil temperature Losi 40 Trinity 40 Associated 40
5 754 688 747
10 677 622 685
15 605 555 598
20 539 492 536
25 501 467 502
30 455 420 456
35 409 377 410
40 373 345 375
45 345 320 346
50 319 294 319