Does the 2008 Highlander Hybrid require premium fuel?

If so, where is the trade-off in economy? With premium at about 20 to 30 cents more per gallon I would like to see a good increase in milage to justify the cost.

I am interested in the Highlander to replace my aging Jeep Cherokee, but if I have to use premium fuel in the beast then I'm finding it harder to justify the purchase.

My old Jeep gets 20 mi/gal with regular at $3/gal that is $15 for 100 mi. If the Hybrid Highlander gets a realistic 25 mi/gal and Premium at 3.20/gal then I pay 12.80 for 100 mi.

I guess any savings is good, but I would certainly like to see a better milage performance. I would go with a Camry or a Prius, but they a harder to haul the kids and camping gear in.

Any thoughts?