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Old 04-30-2017, 11:40 PM   #28 (permalink)
ECONORAM
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Join Date: Oct 2009
Location: Oklahoma City, OK
Posts: 528

ECONORAM - '07 Dodge RAM 1500 QC SLT flex-fuel
90 day: 18.16 mpg (US)

the Avenger - '08 Dodge Avenger SXT
90 day: 27.06 mpg (US)
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Quote:
Originally Posted by Ecky View Post
Here's a BSFC chart for my engine:




I generally drive at 50mph when the speed limit is 50 or above, which puts me right at 2000RPM, where the engine can most efficiently convert fuel into motive energy. From the chart, you can see that above ~75% load, efficiency begins to drop off, so it's best to accelerate at high but not full load.

I have a $3 eBay ELM327 bluetooth dongle paired with my smartphone I used to keep an eye on load until I got a feel for it.
So where, or how did you get this chart for your engine? I'd like to get one for my truck.
And, for those like me, who really didn't/don't understand the whole pulse and glide concept, take a look here at this autospeed page: AutoSpeed - FuelSmart, Part 1
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