Sodium as an additive.
- Thread starter grbr95
- Start date
- Status
For reference, gbr95 is referring to this discussion of the Na level in Mobil Clean 5000 VOA's:
Mobil Drive Clean
[ January 06, 2006, 12:00 PM: Message edited by: 59 Vetteman ]
Mobil Drive Clean
[ January 06, 2006, 12:00 PM: Message edited by: 59 Vetteman ]
sodium sulfonate....like calcium sulfonate...is a base. A "cleaner" if you like.
Sodium, in and of itself, isn't necessarily a problem. The problem is that prior to EM instituting a sodium compound in its SM motor oils (some have also speculated about the possibility that sodium may be tied to an antiwear agent), the presence of sodium almost inevitably indicated the presence of antifreeze contamination - and THAT is a real problem. Like the presence of silicon (which is now common in sealants, and harmless) we'll probably have to reassess our discomfort zone levels about sodium, too.
EM might not always make the best conventional motor oils (or maybe they do depending on your attitude), but their technical staff is not stupid.
EM might not always make the best conventional motor oils (or maybe they do depending on your attitude), but their technical staff is not stupid.
I have M 7500 in one of my cars and I am going to run it for 7500 miles to see what happens. I think there is a lot of good "stuff" in that oil for about $2.25 a quart.
There are plenty of good used oil analysis here, so not that many are "stray"ing from Mobil Clean 5000 or 7500. Why is sodium sulfonate more scary that calcium sulfonate?
From Google: Sodium Alkyl Aryl Sulfonate is used as an emulsifier for lubricants and as a corrosion inhibitor to protect metals and in formulating water based hydraulic fluids.
[ January 06, 2006, 10:34 PM: Message edited by: sebring01 ]
From Google: Sodium Alkyl Aryl Sulfonate is used as an emulsifier for lubricants and as a corrosion inhibitor to protect metals and in formulating water based hydraulic fluids.
[ January 06, 2006, 10:34 PM: Message edited by: sebring01 ]
Chemistry...got to love it. It better be in favor of things. Than again, I don't have the experience nor know how to create my own engine oil, so...
Everything I've delt with in my everyday life would lead me to freakout when finding this in my engine, and that's not saying much as for how I use to wig with all the spraying salt and flying gravel on the roads in the winter.
- Funny character
Everything I've delt with in my everyday life would lead me to freakout when finding this in my engine, and that's not saying much as for how I use to wig with all the spraying salt and flying gravel on the roads in the winter.
I believe the sodium is added in conjunction with Antimony. That is, it is some kind of sodium-antimony compound.
As all things mentioned above, my first thought of sodium would be that it is also there to combat acid formulation. I realize that those who have engines with known intake/head gasket issues don't like to use oils with high sodium content as it could be misleading in used oil analysis.
I may be so in left field, but when you start paying over $2 a quart for oil, I would like a newer technology than the sulfonates. This is old technology, and Mobil is suppose to be putting out the new tech in additives. Well where is it?
- Status
Similar threads
- Locked