[R.W.Dale]

I recently traded my last commuter a notchback 4cyl mustang for a 2000 RCSB Sierra with a 4.3 v6 4L60 automatic, 3.42 gear. I'm using this as a daily commuter for my largely hwy 50 mile round trip daily commute.

So far it's doing really well for a full sized truck averaging 20.6mpg (hand calc) over the past 500 miles driving in a very light hypermile fashion

So far I've done some basic fuel saving mods with the main being the addition of a hard fiberglass bed cover. I was wondering if anyone here has spent any time trying to get the most out of a CPI vortec 4.3 v6 and could offer some suggestions. I'm not looking to go over the top with this project with ecomodding for this truck but I would like to be able to get mileage most folks think is impossible from a full sized truck