Leaderboard

check cv boots? splashing that grease onto exhaust is a peculiar smell. I once snagged a plastic shopping bag on the exhaust and it took a while for that to burn off and the smell to go away.

I don't know about your particular engine, but typically 4000 rev/min is about 'peak torque'. So you would see some better acceleration at that engine speed. With a manual transmission, 4000 rev/min is good for merging & passing on the highway.

Most likely the control panel is developing cracked solder joints. Happens ALL the time on the 05 and 06 units. More prevalent in cold weather. Subaru had a reman program where you can send it in for repair. They are no longer available to purchase new (all have been sold due to control issues or radio malfunctions (also common). THE BEST solution, is to get the double DIN replacement JDM control panel so you can also have an aftermarket stereo. https://avojdm.com/dual-zone-av-panel-set-h6217ag911/ Try pressing on the dash, and also you can try power cycling with the battery terminals. We have seen quite a few of those have all kinds of random behavioral problems. GD

Get a Subaru Rebuilt Alt!

+1 alternator

check all grounds, make sure they are clean and tight otherwise, maybe have alternator checked out