What is the BEST Performance Fuel? Tesco vs Shell vs Esso.. Power SHOOTOUT

UK's Highest Octane 99 RON fuels tested ... which fuel makes the most power? and which would I map my car on ? Shell Vpower vs TESCO 99 vs ESSO Supreme + ... back to back on the same car on the same day on the same dyno..
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#bestfuel #performancefuel #subarutuning #subarumods #subarumapping #selftune #remap #ecumapping #subaru #racedynamix
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