Polaris ATV and Utility Syn.

[Krel]

remmious, those noises you mentioned are pretty normal for a 500. Great engine and quad too, btw!

 

[remmious]

I guess who's to say Blackstone is 'off' but these numbers look more reasonable for the purpose of the oil. We might need a 3rd opinion on this one.

 

[Krel]

Yes, they look a lot more resonable. Definatley a HUGE difference in voa's!

 

[Pablo]

Quote:

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Because we do a lot of lubes for gear boxes and hydraulic units we use the 40°C so it reflects the ISO VG rating. People here would be confused otherwise.

100cSt @ 40 ~ 11cSt @ 100°C

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OK I understand - still only an estimate, depends on the fluid, really the Viscosity Index of the fluid. Don't want to push it....can they do a 100°C vis?

 

[remmious]

Well he said we have a good baseline so it sounds like I can keep sending in samples as we go. Pretty nice of him to do this for me. I'll see if he could do a 100°C viscosity test next time but I agree it would a more representative value.

 

[remmious]

From Polaris Industries - MSDS 0W-40 Synthetic

SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES
Vapor pressure: Negligible at ambient conditions.
API gravity: 35.2 at 15.6°C (60.0°F).
Density: 7.07 lbs/gal at 15.6°C (60.0°F).
Specific gravity: 0.849 at 15.6°C (60.0°F).
Solubility: Negligible in water, soluble in most petroleum solvents.
Percent volatile: Negligible.
Vapor density (air=1): Greater than air.
Evaporation rate
(n-Butyl Acetate=1):
Negligible.
Odor: Mild, bland hydrocarbon odor.
Appearance: Green, slightly viscous fluid.
Viscosity: 14.0 cSt at 100°C (212°F).
70.0 cSt at 40°C (104°F).
Boiling point: Not determined.
Pour point: -50°C (-58°F) maximum.
Other: Not determined.

 

[remmious]

Notice the viscosity is 70cSt @ 40°C. Big difference from 100. I guess direct line correlation from 40°C stuff to 100°C isn't very close at all. 70cSt 2 100 puts it at a SAE 20 but 14cSt falls right into the SAE 40. So really I'm left with just a comparison, I lost about 54% viscosity.

 

[Turk]

Ok, had to run to a meeting where they announced a big (multi-hundred) layoff.

The viscosity is kinda stumping. A verification sample would be nice.

What really would be great would be as you say, is TBN & maybe fuel while you're at it.

TBN on these babies means a lot the way they're run !!

Does this oil really hold a 0 viscosity range (from the 0w-40 rating)for Winter??

It would also be great is to see Amsoil's AFF in virgin state & abused state for comparison analysis.

 

[remmious]

Because the viscosity was tested at a single temperature point and we are trying to compare to other ratings at different tempertures really won't add up. VI plays a role in that and changes over time also. The difference between the 70cSt and the 100cSt should have been closer but I will get more VOA run soon enough. I will probably switch to AFF and get another VOA and UOA done. This is great and the more I can contribute and learn from others is well worth it. The lab is set up to test TBN or TAN so that can't get done but if I remember fuel tests are pretty easy to run.

As for the 0 viscosity range you kind of lost me. 0W doesn't represent an actual viscosity value but a test that measures cranking pressure at different cold tempertures. Yes, a 5W is 'lighter' than a 10W at cold temperatures but that's not what is measured. For some reason I'm blanking out the units but you will see something simular to:
0W: 6600 @ -30°F
5W: 6200 @ -25°F

etc... I'm sure someone who knows this stuff inside and out will straighten out my rambling.

I will run oil samples each change out and post the results.

 

[remmious]

Quote:

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Ok, had to run to a meeting where they announced a big (multi-hundred) layoff.

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Sucks to hear that.

 

[remmious]

Tonight I went to a local surplus store that I knew carried some Amsoil products, well they had the AFF 0w-40 for $6.79qt. So I will switch after this next oil change.

I also was thinking back to the last oil change and with the wear particles. I remember I couldn't find the drain plug for the crankcase and the book says it holds approximately a cup if not drained. So I didn't remove all the oil so hopefully with a 'full' oil change I will see a drop in wear particles. I did after further looking found it (hole in the skid plate you have to reach up into). I'll have VOA and UOA's done on the AFF.

 

[Turk]

Thanks for the update. Also, thanks for the comment on the layoff - I hope it ain't me, but if it is, it'll cost them in severance since I've been there 17 years.

The AFF should be quite interesting.

 

[tmorris1]

Polaris also makes a 0W50 or 10W50 oil that they spec in some of the ATVs. Could this be the thinker stuff and not the 0W40?