Originally Posted By: Captain_Klink
and all conventional 5w20 has better cold properties than any 5w30 synthetic group 3.
I have already corrected you on this before. It is NOT true!
I cited a few examples as such, and am not going back to find them again.
Meh - Had to find it.
Originally Posted By: Zaedock
Originally Posted By: Captain_Klink
the cold properties at -25C and -30C are vastly superior, the 5w20 will spank the 5w30 every time,
even synthetic 5w30 is not a match for conventional 5w20, because all 5w20 is group 2+. just look up the MRV values using google search, and go through the various websites of each oil company. 5w20 is really excellent oil.
This is completely incorrect.
Let's see....how about we compare, say Q-Horsepower
5W30 to...Mobil Clean 5000
5W20
QHP CCS - 3980@ -30*C
MRV - 12,800@ -35*C
MC5K CCS - 5100@ -30*C
MRV - 21,400@ -35*C
I don't have the numbers off the top of my head (and the Valvoline site is down for maint), but the QHP 5W30 also has lower CCS and MRV numbers than Valvoline conventional 5W20.
Vastly superior huh?
"just look up the MRV values using google search, and go through the various websites of each oil company."