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Old 09-20-2009, 10:22 PM   #1
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Default Losi 60 weight lighter than losi 50 weight

I threw in some 60 weight oil in my d8 and it was lighter than the 50 weight. I could tell by shaking the bottles a little that the 60 was significantly lighter than the 50, or even the 45, perhaps even 40. Is this normal? I've never touched the 60 wt before and this really caught me off guard.
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Old 09-20-2009, 11:25 PM   #2
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Ugh the 60w should be a fair bit heavier than the 50w
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Old 09-21-2009, 01:43 AM   #3
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I have never had any problems from Losi oils like that and have been using it for many years now, but our local Pro driver will NOT EVER use Losi shock oil because of what you just said. He says it changes from batch to batch. I know it's suppose to be certified, and yes I just bought 4 more bottles to restock my pit box with.
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Old 09-21-2009, 03:56 AM   #4
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hmm i do know that losi oils are pretty high quality. I know that pros use them like ryan lutz, as far as i know from what i have seen losi is the only one that promises you that the weighting is correct. if so you think it is a bad batch i would call losi and see what they say. only outher shock oil i would use is the xray oil but it's $14 a bottle yikes
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Old 09-21-2009, 04:50 AM   #5
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I have a spread sheet somewhere that has most of the major brands of oil on it.

YES, Losi 60 is lighter then Losi 50 by the cts ratings the test results showed.

Dayton
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Old 09-21-2009, 07:42 AM   #6
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Quote:
Originally Posted by 1armed1 View Post
I have a spread sheet somewhere that has most of the major brands of oil on it.

YES, Losi 60 is lighter then Losi 50 by the cts ratings the test results showed.

Dayton
That makes no sense...
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Old 09-21-2009, 07:59 AM   #7
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Losi has some of the best oil in the business. I would assume it's just a bad bottle. I just checked my oils and the highier the WT the thicker it was like you would think. The only thing that I have noticed about the Losi oil is it is just a touch thinner compared to a different brand of the same weight. For example if I had 30WT Team Associated shock oil, I would need 32.5WT to get the same WT. It's nothing huge just something I have noticed since using Losi oil.
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Old 09-21-2009, 09:09 AM   #8
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Quote:
Originally Posted by 1armed1 View Post
I have a spread sheet somewhere that has most of the major brands of oil on it.

YES, Losi 60 is lighter then Losi 50 by the cts ratings the test results showed.

Dayton
I believe this. I've been referencing CSt conversions as well and they're not nice and linear like you'd expect. My chart doesn't go to 60 though, so I just estimated that it would be heavier than 50.
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Old 09-21-2009, 09:49 AM   #9
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losi oils are so far off beacuase wt is an imaginary mesurment, untill losi adopts the cst/cps system everyone else uses i find their oils irrelavent
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Old 09-21-2009, 09:59 AM   #10
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Quote:
Originally Posted by Echelon View Post
That makes no sense...
The info is on this page, the test don't lie and my own test proved 50 to be thicker.

http://www.twf8.ws/php/tip/shock.html


Lots of great info there, check it out.

later
Dayton
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Old 09-21-2009, 10:05 AM   #11
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I believe this is the chart being talked about:

Losi silicone oil measured with Rheometer
15-12-2005
rating Cts
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
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Old 09-21-2009, 10:08 AM   #12
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Maybe lighter in color but lighter in viscoscity thats impossible. I like losi oils and silicone they always seem to he consistent to me.
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Old 09-21-2009, 10:12 AM   #13
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Quote:
Originally Posted by Frank L View Post
Maybe lighter in color but lighter in viscoscity thats impossible. I like losi oils and silicone they always seem to he consistent to me.

I use losi oils myself and this seems to be the only wt that is off, but 50 is thicker then 60.

Grab a bottle of each and check it out.

Dayton
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Old 09-21-2009, 10:22 AM   #14
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Quote:
Originally Posted by 1armed1 View Post
The info is on this page, the test don't lie and my own test proved 50 to be thicker.

http://www.twf8.ws/php/tip/shock.html


Lots of great info there, check it out.

later
Dayton
I use that page all the time too -- I didn't know they had cts ratings for the 60 wt or I would have checked it out.
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