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I am running 87 in the winter because 40 cent diff and I am in Upstate NY so snow. No need for more power. Once time hits for my Summer Tires it is back to 93.
 

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558 Posts
If i wasnt running a tune i'd probably be running 87. I felt no performance loss when stock, and the ecu will make timing adjustments to resolve any possible ping


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My Boost gauge only hits about 16psi with 87. May be cold temps and keeping boost lower to stay within the torque range. If the computer adjusts for that.
 
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