Purchased this 2016 RS on October 24, 2025 and have driven it almost every day since. I put on 23,336km (14,500 miles) this year, and spent approximately $13,000 CAD in maintenance and mods including wheels, tires, all Fluids, plugs, coil packs, pads, rotors, 2018 RS springs and dampers, some minor body work, a head gasket, and other random small things.

I may be biased but I firmly believe this car has to be one of the most practical and fun daily driver cars out there!

What could be causing this? It’s running lean, not missing coolant, or oil. I’m running E30. It’s only cylinder 3