Originally Posted by Foxbat
For Turbo engine: Premium is REQUIRED
For non-Turbo H-6 Engine: Premium is not REQUIRED but RECOMMENDED
I think only1agam mistakenly took the advice for WRX/LGT/XT for Tribeca.
^exactly sorry for the confusion.. after a couple of thousand miles in a vehicle that requires premium fuel, if you use regular fuels you may here a pinging noise in the engine.. we had a customer a while back with a H6 Outback (this was before i worked) that only used regular fuel and developed a pinging noise due to lower octane... SOA wouldnt fix the problem bc the manual talked of using regular in the case of emergencys.. NOT on a regular basis.. the B9 has that same H6 as the Outback and we do tell all of our customers that premium IS recommended