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Can i use regular fuel for WRX????

47K views 43 replies 24 participants last post by  WRX2023WRX  
I'd use premium. I had a 2nd gen elclipse trubo that was supposed to run off premium and of course being in college I took the cheap way out and used regular for 4-5 years. By the time the car had 75k miles on it the engine ran like crap. I had so much carbon buildup and it never really ran well after 90k miles despite taking care of it (ither than ignoring premium gas).