Why would you even spend the time and money to tune for 87? Its less than 5$ difference to fill up. Since its on average 250$ for a tune. It would be a complete waste of money to detune the car to save a few dollars.
Personally I wish they would just change to 93 octane only everywhere and get rid of this 3 tier bs.
If you want to do a tune to have cheaper fill ups then go with e85, then you get more power and a lower fillup. Actual MPG tho I have seen everywhere from better to worse on the car.
Also people are running 7-8.5 psi on pump gas, maybe more I havent really looked that far.
But Im gonna go with yes.... if you really wanted to spend the money on a tune Im sure someone like Visconti could make a map.
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