Good cold flow
- Thread starter Zach_1985
- Start date
Not enough between brands to probably worry about. If you are concerned, go to a 0w20, that will make more difference.
Good old “flow”. And oils are not characterized by “weight.”
Flow is largely irrelevant in an ICE, what matters is cranking and pumpability. This is indicated and specified by the oil’s winter rating. Pick a grade with a winter rating that is appropriate for your expected starting conditions. Or as Jimmy_Russells notes, just get one with a 0W rating.
Flow is largely irrelevant in an ICE, what matters is cranking and pumpability. This is indicated and specified by the oil’s winter rating. Pick a grade with a winter rating that is appropriate for your expected starting conditions. Or as Jimmy_Russells notes, just get one with a 0W rating.
Something with lots of group lV. Mobil 0w-20 EP is one example.
At which temperature?
The thread starter asked about start up flow. Where did you get pump from?
Hydraulic Pressure vs. Flow: Understanding the Difference
One concept that prevents many people from being able to successfully troubleshoot their hydraulic systems is the failure to understand the difference between pressure and flow. While it is …
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0w-20 is a better oil anyway. Usually has a slightly higher KV100 and HTHS and more PAO. No reason to use 5w-20 if you're going to use a 20 grade.
But oils are allowed to slip a winter grade in use... also if you engine is a diesel, remember that fuel dilution is not your friend at those temperatures, especially since it's the bio-component that is most likely to cause the dilution. Bio diesel doesn't like cold...
*Besides the lower cranking ability and opportunity for more PAO content of the 0W20 oils - I would not necessarily rule out 5W20 synthetic oils for usage . For one , they usually have a lower NOACK than a 0W20 as well as usually more shear stable as well . For GDI engine applications a 5W20 synthetic oil may have benefits (unless you live in a truly frigid climate) .
A SAE J300 grade is not a "better oil", I would compare finished lubricants.
So what two were you thinking of?
I just looked at Valvoline HM syn , and I would pick the 0W20 if expecting a nasty, cold winter. Just due to the higher VI and lower KV40.
I wish there was a KV-zero- reporting requirement, KV40 is still over 100 deg F test. I suppose the data could be extrapolated, but with high VM loads I would think it's hard to predict. Plus many blenders are not particularly forthcoming with KV40 or VI.
I would just like to note the OP did not mention "synthetic". Maybe they are interested in a "conventional" 5W20
Of course it will be. Any oil with a winter rating of 5W is more than adequate at that temperature. So would one with a 10W rating.
Dunno, ask the OP
Sorry I thought maybe you knew what you were talking about.
No worries
