There was a mind boggling variety of these saws built over the 30+ year life span of the series. I've seen one red/white/green Super XL Automatic (not a SXL-AO, although they're largely the same except for badging and colors) in addition to many red/white/green and blue/white XL Automatics (most with no manual oiler), some blue/white Super XL Automatics, and one red/black XL Automatic (with no manual oiler).
Then there's the blue/white XL-12's (got a really nice one), red/white XL-15's (had one), blue/white XL Automatic gear drives, Super XL-Automatic Gear Drives (not sure what colors they were as I've only seen a B/W IPL), blue white Super XL-12's (had one), various flavors of red and red/black SXL-AO's (everybody has at least one), late red/black XL-12's (got one that's a parts saw), yellow/black John Deere branded SXL-AO's, black Canadian department store SXL-AO's (can't remember the store name or the model #.......but they had chainbrakes), late blue "Old Blue" labeled SXL-AO's, late blue SXL-AO "Limited Edition" saws, etc etc etc.
Soon I'm going to start a thread for folks to post pictures and data for the multitude of saws in this series. I'll shoot pics of what I've got to start, and we'll roll from there. Hoping to compile a good collection of photos of the various models (hopefully with descriptions of the unique charactaristics/parts/etc that they have). Will also attempt to discuss the changes in parts (carbs, ignitions, intake types, oiler types, etc). Arrowhead (Ed) came up with the idea. He'll be starting a similar thread for the E-Z/Super E-Z/XL-1/XL-Mini/E-Z 250/etc series. That'll be interesting, as Homelite went ape#### with all of the running parts changes on that series....