Did you mention using the flush on the information slip when you sent it in? Did the sodium show up in prior testing, or just this time?Second report on my 2005 FXT. They're starting to suspect coolant in the oil. I haven't noticed any coolant consumption in the year and a half I've owned the car. It got new coolant right after I got it.
EDIT: they say no potassium, just sodium. So they really aren't sure if it's coolant. My wife has an 05 NA Chevy Cobalt that gets the same on its reports with Mobil 1 (some sodium, no potassium) maybe something environmental or I'm causing contamination of the samples? I don't think the Cobalts are know for HG problems. I've sent my new WRX's oil in for a sample too and it doesn't show as much sodium. However the local Subaru dealer did that change (taking advantage of my warranty/maintenance plan). I changed the oil in the WRX this time so it'll be interesting to see if the sodium spikes on my next report with it.
However, I did use some Suabru Oil Flush on the Forester's oil change before last to clean out the AVCS solenoids. It was recommended by a Subaru tech after I got a code. It did degunk those things pretty well. I'm not sure if that could be responsible for the sodium or not. Any ideas if that amount of sodium would show up as coolant loss?
Did not, but I gathered the sample before I added the flush. I just emailed them asking if that could be the culprit.Did you mention using the flush on the information slip when you sent it in? Did the sodium show up in prior testing, or just this time?
EDIT: Just went back and saw it was there in your last sample too according to the report
kōbai-iro;6639498 said:2015 Forester 2.5L, 1500 mi on my sample, 12k on the engine. Good report so looks like I can extend oil changes quite a bit (especially once the warranty is over). I've used the severe service schedule (4k or 4 mos) because 90% of my driving is short stop and go city driving so I was concerned how that was affecting my oil/engine.