First time driving my STI in 30 degree weather!!!
Been working out of state and it’s been snowing. I use my 2020 STI to commute to work and back home which is a 10 hour drive. While at work we use company provided trucks so the subbie stays parked for most the time. Before my drive home I filled up at a Chevron (that’s the gas I use 90% of the time) it was about 33 degrees. 5 hours into my commute I pull over the pump gas now in warmer 60 degree weather and the car is in idling rough. I connect the accessport and its at .6 dam. I then reset the ecu and drive home the rest of the way with no dam drop just the normal 1-2 knock when heavy throttle. Do I now tune the car when up at work where the air is colder? and swap tunes or could it have been winter blend gas from the chevron? Really stumped I’ve never had issues. 63k miles mostly supporting mods AOS,cylinder 4 cooling mod, oil pick up and baffle. only performance Cobb redline intake and e-tune
