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C'mon people - let's stay on topic here. This is a car/auto question thread.
While we're at it - does anyone here buy the mid-grade or high octane fuel? I used to in my early 20s thinking it helped the engine - dumb. Now I only buy the cheap stuff.
Depends on the car. My 4 banger 5 mile a day car gets the low end. All the other cars are mid-grade or higher. The carbon cleaners in the higher octane fuel do help as I noticed with the 4 banger getting the crap fuel and needing more help there. Also, the cars I have with a specific octane rating or higher do perform better with the higher octane fuel.