As of this afternoon, I've clocked an 'indicated' 42,000 miles and change on my 87 Raider. The best tank mileage I had oddly was in winter and with 33's...about 20.5 mpg 'indicated' as I haven't changed the speedo drive gear yet.

My normal driving:
235's on stock alloys = 17 to 18.5 mpg
31's on 8" steel wheels = 11 to 19 mpg, range due to trailer towing in 4-lo and substantial highway with a single bag of dirt (250 mile trip for a bag of dirt!!)
32's on stock chrome steelies, driving up and down from Tahoe = 14 to 16 mpg
33's on alloys = 13 to 20.5 mpg

I carry many tools on a daily basis, use the truck almost strictly for work, and use 4-lo quite often.

The 25-mpg is for a Samurai, not a Mitsu. <img src="/forums/images/graemlins/drunk.gif" alt="" />