Lowest pour point

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I would like to make a list of the cold pour point on most brand to find witch one is the lowest. So far here the one i could finds, but if you know some smaller company fell free to post them . NO SYNLUBE data please!

Mobil1 :
5w20 -47 c
5w30 -48 c

Penzoil ultra:
5w30 -39 c
Platinium:
0w20 -48 c
5w20 -45 c

Castrol Syntec:
0w20 -40 c
0w30 -40 c

Amsoil Syntetic
0w20 -54 c
0w30 -51 c
5w30 -50 c
5w20 -43 c

Red line
5w20 -45 c
5w30 -45 c
0w20 -60 c
0w30 -60 c

So far Amsoil and Red line seems to be the most impresive data wise.
 
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Really? Look at the 5W-20 numbers if that is what you are comparing! I don't know why a degree or two has any importance.
 
It’s only for me we do see -50 here during winter ; it’s mostly useless for most of the people. I’m not brand loyal, just next winter, ill have to use my vehicle more and i won’t be able to plug it most of the time since ill be in the field .As for Castrol 5w30 i took the number strait for their site.
 
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If you are actually seeing -50 temps, then you'll be one of the few people to actually see a real difference between Group IV and Group III basestock.

I'd say to stick with Group IV's and V's next winter if you want them to start outright. Note that even then, it's still not good for the engine; just because they pour at -50 doesn't mean they actually provide protection at -50! If at all possible, use that block heater.
 
Originally Posted By: znode
If you are actually seeing -50 temps, then you'll be one of the few people to actually see a real difference between Group IV and Group III basestock.

I'd say to stick with Group IV's and V's next winter if you want them to start outright. Note that even then, it's still not good for the engine; just because they pour at -50 doesn't mean they actually provide protection at -50! If at all possible, use that block heater.


I do most of the time,got block heater,pad heater on the oil pan and a blanket on the battery.In the field just kinda hard to get acces to an outlet to plug it lol
 
If it'll help you, I'll post the database I have on hand, sorted by pour point. Note that I only keep track of 30-weights.

Edit: Oh, and if it doesn't say the weight it's the 5W-30.

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I would be looking at the 40 Degree Celcius Number, I think that is more important than the Pour Point Number.
 
Originally Posted By: virtual
I would like to make a list of the cold pour point on most brand to find witch one is the lowest. So far here the one i could finds, but if you know some smaller company fell free to post them . NO SYNLUBE data please!


So far Amsoil and Red line seems to be the most impresive data wise.




Fully realizing that this is not the direction you are going with this consider the following if you want to talk impressive.

M1 Vtwin 20W50 -51 C. That's right, a 20W50.
 
Originally Posted By: EagleFTE
Originally Posted By: virtual
I would like to make a list of the cold pour point on most brand to find witch one is the lowest. So far here the one i could finds, but if you know some smaller company fell free to post them . NO SYNLUBE data please!


So far Amsoil and Red line seems to be the most impresive data wise.




Fully realizing that this is not the direction you are going with this consider the following if you want to talk impressive.

M1 Vtwin 20W50 -51 C. That's right, a 20W50.


That's what I use in my Honda V-Twin. I guess I'll have to ship 'er to Alaska to see if that's true :)
 
While pour point is important there are also other pieces of the puzzle to consider for cold start protection. There is more needed than the best cold pour point to protect an engine during start up, and warm up time. Perhaps one of our resident oil experts can explain it better than I can.
 
Pour point is a very low shear rate viscosity test. When an engine runs, it is subjected to much higher shear rates that make its viscosity change. That's why the cold cranking and pumping tests were created since pour point is not a very reliable determinant of extremely cold weather behavior of the oil in an engine. So you need to look at CCS (cranking) and MRV (pumping) viscosities.
 
Originally Posted By: JAG
So you need to look at CCS (cranking) and MRV (pumping) viscosities.


How do we interpret these numbers on the CCS and MRV viscosities.
 
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