that's one of the major advantages of those options and trim for sure. I used to have a little XL trim basic Ranger with a 5-speed stick. That thing never quit. got over 30 mpg in it many-a-time.

 

Specs in sig, but my tire is 1.1" taller than stock @ 31.7". Purchased a Superchips FlashCal and reset the speedo to a 31.75" tire (unit takes .25" increments).

Over a 100-mile stretch heading home from a short trip, holding the truck to 70 MPH in 6th @ 1700 rpm netted an actual 22.5 mpg (dash said 24.0) and that leg included a climb and descent of equal elevation. Only other engine airflow mod is a 3" in/out Series 70 Flowmaster "big block" 3-chamber in place of the rear-most factory muffler. Too, had just added a cheap, folding vinyl tonneau.

 

Yeah mine's a stripper XL "Workhorse," but has one size bigger tires 245 vs 235 (I notice the new ones I've seen have now gone to 245 Michelins, which is what I'm running now), and mine has a tow package (but still the 3.55 rear end ratio).

It's pretty sensitive to HOW I drive it, as far as gas mileage goes. If I drive "economy" style (i.e. there's no traffic up my ***) it's satisfactory for a full size pickup. If I don't pay attention the mileage around town really suffers.

Going to the 245 series tires didn't seem to change speedo or gas mileage.

I discovered my Rotten Robbie local gas station doesn't go below E87 gas, and no ethanol. Valero goes to E85 and ethanol. I've been blending and didn't even realize it.

Still gets better mileage as soon as I get out of California and fill up with better gas that isn't "oxygenated" (like a Mcdonalds milkshake).

 

I got about 18.5 mpg from Salt Lake City to Dayton, OH. (~1650mi) running 75+ mph most of the way.

Coming back, pulling a 5000# travel trailer and making a couple detours (~1820mi) running at 65+ mph, I got 8.9mpg.

 

My '16 SCab XLT Sport lifetime of 4,600 miles is getting exactly 20MPG. current tank is getting 21.7MPG

 

yeah, sure, why not? Btw, nice thumbnail on that vid.

 

Has anyone noticed or watched the instantaneous mph on the dash as your driving. If I'm going 55mph with cruise and on flat ground I getting anywhere from 33-45mpg..is this right? I thought a test would be, fill up and drive 55mph with cruise and pull off road and fill up to ck? My dash average says 22.5mpg, 3.5L.

 

You mean the instantaneous mpg readout? That can drive you nuts. Seems like a vacuum gauge to me... forget about it, or simply revel in your 99 MPG when pointing downhill.

And my truck's avg. mpg dash readouts over any distance are typically 1.5 mpg optimistic. As I noted earlier somewhere in this thread, a 100-mile leg netted 24.0 avg according to the dash readout but on paper it was actually 22.5. My speedometer has been recalibrated for my current tire, so my paper figure is as accurate as it can be (unless the PCM were to accept Revs Per Mile input, then it might be even more accurate). I would like to measure my speed with a GPS unit and verify the current calibration.

 

Many good points. Get yourself a free GPS app, I use Android "Ulysse Speedometer" just remember to kill it, or it will stay on for ever. It has lots of features..

 

try Waze