Just Got my UOA back from blackstone, Not many of these for this car and oil! Hope this helps anyone interested about this oil! I originally had my oil changed at Subaru at 3,000 Ran that oil until 7,000. Then started using the Eneos Sustina. Ran it for 5,000 and just used it again, will post up another UOA in the next 5-6,000 miles. I am running a OEM Subaru blue filter. Mods to the car are Invidia Catless DP, Takeda CAI, And Full Pro dyno tune by M.R Performance. Im boosting 18.5psi. they noticed I had some sodium in my oil, I emailed them back with my concerns and they had this to say:
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Nov 22 at 9:40 AM
Greg,
Don't worry. Even at 26 ppm of sodium, that's not enough to show coolant,
but we wanted you to know of the possibility. You mentioned the oil was
changed at the Subaru dealer, and they could be using an oil that does use
sodium. They often have bulk tanks with Valvoline, Quaker State, Pennzoil,
or other major oil brands. These oils can have some sodium as an additive
already in the oil, so that's probably where it's coming from. If it were
coolant, we'd look for more potassium in the oil and you would probably
notice the coolant level dropping.
For your next oil run, I suggest 7,000 miles. Your engine is past the
wear-in process and doesn't have excess metal or silicon lingering around
that might cause issues, so you're clear for longer runs. Don't sweat the
sodium. As long as you use the Eneos oil, or other oil types like Mobil 1
that don't use sodium, it should drop in the next report. If you do use an
oil with sodium, like Valvoline, expect silicon to increase and read
somewhere between 300-400 ppm. Even in that case, it's not harmful to the
engine. Like I mentioned earlier, we'd have to see more potassium (and
sodium) to call this coolant.
So From my UOA what do you guys think??!!
-Greg
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[/img] Nov 22 at 9:40 AM
Greg,
Don't worry. Even at 26 ppm of sodium, that's not enough to show coolant,
but we wanted you to know of the possibility. You mentioned the oil was
changed at the Subaru dealer, and they could be using an oil that does use
sodium. They often have bulk tanks with Valvoline, Quaker State, Pennzoil,
or other major oil brands. These oils can have some sodium as an additive
already in the oil, so that's probably where it's coming from. If it were
coolant, we'd look for more potassium in the oil and you would probably
notice the coolant level dropping.
For your next oil run, I suggest 7,000 miles. Your engine is past the
wear-in process and doesn't have excess metal or silicon lingering around
that might cause issues, so you're clear for longer runs. Don't sweat the
sodium. As long as you use the Eneos oil, or other oil types like Mobil 1
that don't use sodium, it should drop in the next report. If you do use an
oil with sodium, like Valvoline, expect silicon to increase and read
somewhere between 300-400 ppm. Even in that case, it's not harmful to the
engine. Like I mentioned earlier, we'd have to see more potassium (and
sodium) to call this coolant.
So From my UOA what do you guys think??!!
-Greg
