...then why bother marketing 5W30 or 10W30 when 0W30 is superior in startup than of the two grades mentioned?
Thanks,
Oz
Thanks,
Oz
I really doubt that the average consumer even thinks about it. We are all a bunch of freaks really, to give this much time and thought to it.quote:
And for good reason. Best overall economy, film strength, and low level of VII's.
Is the difference in VI improvers between 5W30 and 10W30 that significant?quote:
And for good reason. Best overall economy, film strength, and low level of VII's.
Yeah right it willquote:
A: Mobil 1 5W-30 will protect your car in the summer as well as Mobil 1 10W-30. Your owner's manual specifies 10W-30 above 20º F not because of the heat of summer, but because of the absence of cold. If you use 10W-30, the oil could be too thick to provide adequate protection at start-up for temperatures below 20º F.
What is the CCS viscosity though. I bet one is measured at -25 and the other -30.quote:
Originally posted by Patman:
I
10w30 is -49F, 5w30 is -54F, not much difference there!
Or look at Valvoline Synpower, both the 10w30 and 5w30 share the same pour point of
-42C! So in that case where is the advantage of using their 5w30??