Originally Posted By: Shannow
As per previous times, the video is more representative of what happens when you grossly misapply a lubricant...
Have a look at the older, 1984 J300 specs...in particular "borderline pumping" Temperature.
They have chosen to demonstrate their pour test, start test, and sump pump tests at -35, a point at which only the 0W oil would be expected to pump/flow in the the first place.
The "test" would be great to see at (say) -20C, so we could see actually how much better the 0W30 was versus the 10W30, rather than a demonstration of what happens when you use an oil that has no place being in the engine at that temperature anyway.
People here discount MRV and CCS as irrelevant in choosing an oil, but clearly it IS relevant...if you are playing in the temperatures demonstrated in the video, 0W anything is sound.
You are definitely correct that the test shows the extreme limits of oils and shows how an inappropriate oil acts compared to an appropriate oil. But, I think that was the point. People need to think ahead in terms of EXPECTED temperatures during an OCI when choosing their next oil.
Let's use this past winter as an example, January 6th-9th saw our coldest lows. Not to say that the rest of the winter wasn't bitterly cold. The temps for those days were as follows; -26.7*C, -25.6*C, -25.6*C, and -26.1*C. These temps all surpass the limits for borderline pumping of a 10w. Many vehicles still on the road recommend a 10w, however I certainly wouldn't recommend using a 10w in our winters. Would a 10w synthetic be better? Perhaps. Though I would still rather go with a 5w Conventional over a 10w Synthetic in these temps (depending on type of driving).
Regardless of Conventional or Synthetic I think the video was trying to establish a fact, the lower the winter number the better the cold weather pumpability. For the month of January my town had an average low of -23.3*C and an average high of 1.6*C, these are temperatures which should make anyone act proactively about their oil selection.
P.S. I'm so glad you're still on the site. Not too many "old timers" left on here from the early days of BITOG, it's nice to have intelligent and engaging discussions, something you are always able to supply.