I was comparing Delo® 400 XSP SAE 5W-30 with the Havoline PRO DS 5w-30. Delo has a lower pour point, but Pro Ds has higher VI.
Pro DS 5w-30
VI = 170
Pour point = -27 deg f.
Vis @ 40 cst =62.1
Vis @ 100 CST =11
Delo 5w-30
VI = 165
Pour point = -51 deg f.
Vis @ 40 CST =72.4
Vis @ 100 CST =12.1
Delo 5w-40
VI =170
Point point = -51 deg f
Vis @ 40 CST = 96
Vis @ 100 CST = 15.4
So Delo has a lower pour point, but PRO DS is thinner at 40deg c?
Which one of these will flow best at say, 0 degrees Fahrenheit?
Only the PRO DS is Dexos 2 rated as far as I can tell.
Of these 3, which one would you recommend for a 2013 suburban 5.3l with 125,000 miles on it?
North central AZ. Summer highs are 95-100 degrees, and winter I've seen lows of 10, but usually in the low 20's.