i dont know about you guys but i'm still running at regular gas. it seems to be fine. and did'nt the service manual say it require regular gas. from what i know, you only need the higher octane if you got some hi-po mods like a high compression ratio.
the higher octane is'nt really an option for me cuz it cost about +90 cents per litre where i live.
i thought the only reason ya would really need to run a higher octane is if ya are using the programmer. i run the 87/89 in mine and it runs great. actually i tried to run 93 in it for a month and it seemed to run a lil worse so now i'm back to the 87/89. i guess it the truck just gets used to what ya put in it.