We’re all told premium is ethanol free. But is it “additive free”? All the companies keep advertising these “ special additives” that supposedly “ clean your engine” while preventing “ harmful deposits.” Other than maybe causing a microbial degree of cylinder burn off, do fuel companies think consumers actually believe that additives magically mix with oil ? Thereby keeping your engine clean, and “ safe.” Most consumers probably don’t think past the funny little living cartoon cars used to demonstrate their magical additives. It’s all Talcum powder far as I’m concerned. Did you happen to notice the snowflake warning icon pop up on your R3r when starting in subzero temps? That may only be in Sport mode.