• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Fiesta ST Forum and Fiesta ST community dedicated to Fiesta ST owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Fiesta ST Forum today!


Should I run 93 octane?

NotGnu

NotGnu

Member
U.S. Navy Veteran
#1
Messages
57
Likes
34
Location
Akron, OH
#1
As stated before, I don't know what tune was done to this Fist before I bought it.
It def. seems to run better on 93 octane.
Is this a thing?
 


You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
GAVN8R 115k Miles - What should I do? New Member Introduction 23
sleepbattery What style blow-off valve should I run? EcoBoost Engine Upgrades 5
B What SHOULD the timing belt interval be? General Automotive Discussions 3
Ganjie Should I be concerned? Maintenance, Warranty Issues & Troubleshooting 4
T Need Advice: Should I Revert My 2018 Ford Fiesta ST3 to Stock Springs? Suspension, Brakes & Chassis 2
SwissLime Should I tune for 91 and just run 93 for an extra margin of safety? Performance Tuning 36
M Should I wait for RMM before running stage 1 93 oct Cobb tune? Performance Tuning 7
N 2014 Fiesta ST Warranty About to Run out, anything I should look for/ double check before its too late? Maintenance, Warranty Issues & Troubleshooting 2
K I always run AC should I still install rear motor mount? Performance Tuning 14
Sekred Should you guys be running 5w-20 engine oil? Maintenance, Warranty Issues & Troubleshooting 0

Similar threads

Ford Community Posts



Top