Hope this question has not been asked before. My understanding is Pennzoil Gold is a blend of synthetic and conventional oil.
So is the 0w20 a mixture of 0w20 synthetic and 0w20 conventional? If so, why is 0w20 conventional oil not available.
Autozone finally sent me info on this oil.
Description
STP 5W-40 EURO FS 6/1Q
Inspection Information Test Method Typical Value
Gravity, °API ASTM D287 34.83
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8507
Viscosity @ 40°C, cSt ASTM D445 76.77
Viscosity @ 100°C, cSt ASTM D445 12.95...
What is interesting is there is no info on this oil on stp.com. Is this 5w40 made just for Autozone? The reason I ask, the front and back of the bottle say to recycle your used oil at your nearest participating Autozone!
I had same trouble with Discover using RockAuto. I had to open a email from Discover and verify that I was making a purchase. Then punch in a security code into RockAuto checkout page to complete transaction.