I've read sodium, but then again some say sodium is mainly a detergent but does have some properties as a anti wear.
I ask because I have one remaining quart of Valvoline and the rest of what I have is Castrol. The Castrol is the titanium stuff.
I'd like to use that last quart for the next OC on my VW which is only a four qt capacity. 3 Castrol and 1 Valvoline is the chemistry is somewhat compatible.
I've looked at VOA's for Valvoline Euro 5w40 and Castrol Edge 5w40 here in the VOA forum and BOTH had sodium levels of 3ppm. Other that the Castrol having 23 ppm of titanium, both had pretty much the same amounts of other elements.
Can anyone shed some light on the main anti wear/friction mod of Valvoline?
Edge 5w40
Valvoline Euro 5w40
I ask because I have one remaining quart of Valvoline and the rest of what I have is Castrol. The Castrol is the titanium stuff.
I'd like to use that last quart for the next OC on my VW which is only a four qt capacity. 3 Castrol and 1 Valvoline is the chemistry is somewhat compatible.
I've looked at VOA's for Valvoline Euro 5w40 and Castrol Edge 5w40 here in the VOA forum and BOTH had sodium levels of 3ppm. Other that the Castrol having 23 ppm of titanium, both had pretty much the same amounts of other elements.
Can anyone shed some light on the main anti wear/friction mod of Valvoline?
Edge 5w40
Valvoline Euro 5w40