Originally Posted By: David1
Originally Posted By: Kira
Hello, Just did a friend's Chevy with the green bottle and K&N the other day. Sure looked cleaner than what came out! Kira
Well the New Oil should of looked cleaner then what came out of the cars oil pan.
lol
I wonder if anyone has put any UOA
Not sure if this oil has been out long enough in the FULL SYNTHETIC FLAVOR
I wonder how they do that?
I mean I just dropped off about 15 gallons of USED OIL at AAP
There was brake FLUID and Tranny FLUID and Power Sterring FLUID in those plastic jugs to took to AAP
I wonder how VALVOLINE can make FULL SYNTHETIC out of that stuff.
I mean do they start with base Stock III or IV or V
I mean if its USED Oil to start off with, then how do they know?
Strange.
Here's a quote from Machinery Lubrication which may help:
Quote:
Group III base oils are greater than 90 percent saturates, less than 0.03 percent sulfur and have a viscosity index above 120. These oils are refined even more than Group II base oils and generally are severely hydrocracked (higher pressure and heat). This longer process is designed to achieve a purer base oil. Although made from crude oil, Group III base oils are sometimes described as synthesized hydrocarbons. Like Group II base oils, these oils are also becoming more prevalent.
So what makes a Group III base oil has more to do with the treatment of the feed stock than the feed stock itself. Crude oil has a more varied composition than used motor oil, so it's easier to re-refine the used motor oil. Once the refinery gets the fraction that it wants to make oil out of, it refines it, and through the use of hydroprocessing of various kinds, the desired base oil is made. The chemical composition of many molecules in the oil is actually changed through this processing, which is what distinquishes between Group II and III.
That said, I wish we had AAP out here on the left coast. I'd definitely buy that deal, in either bottle.