High Sodium in aged oil?

[haley10]

Your engine is pretty new. Notice that the sodium came down on the second uoa also.

I don't think sodium is a component of oil ageing.

I expect it will decline further as the engine runs in more. I think you will see a trend downwards.

 

[tadaima]

Haley, could be. Well I should have my GC 0w30 coming up soon and it will have 5K on it with about 6-7months on the oil. Some say it may be a coolant leak, but I haven't seen any drop in coolant.

 

[slalom44]

Do you do a lot of driving near the ocean? I've heard that you can pick up a lot of sodium through your air filter from salt dust. Since your second UOA has relatively high silicon, this is feasible.

 

[tadaima]

I noticed that my UOA have high sodium content. The car only has 30K on it 5sfe Camry. Each UOA was either 3-5K, but it takes me about 6mo to reach that point.

Is there a correlation between Sodium content and long drain intervals (time not mileage)?

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=001021#000000

and


http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=000498#000000