[belundy]

Also note that with many modern engines, there are knock sensors that will advance the ignition timing for premium gas, which improves low speed torque 5 to 10%. The '03 Pilot manual mentions that improved performance can be had when towing by using premium (92 or better octane). I use premium when on road trips and loaded down with people and stuff. Makes a difference in how often tranny wants to upshift on hills.