07-28-2016, 01:08 AM
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#31 (permalink)
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EcoModding Lurker
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Update: Took a nearly all hwy trip this weekend and got a new record on fuel economy. As for driving techniques, all I did was set the cruise at the speed limit and set the tires at 50 psi. The air was on at all times. I'm guessing the cars officially broken in now, 
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07-28-2016, 01:14 AM
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#32 (permalink)
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EcoModding Apprentice
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Quote:
Originally Posted by Dean in Milwaukee
Update: Took a nearly all hwy trip this weekend and got a new record on fuel economy. As for driving techniques, all I did was set the cruise at the speed limit and set the tires at 50 psi. The air was on at all times. I'm guessing the cars officially broken in now, |
Dean, cruise controls are known to be bad on fuel economy when the road elevates, because the control will press the gas pedal more to maintain the programmed speed.
When approaching a grade, turn off the cruise control, and. despite the car slowing down, maintain the same amount of gas pedal pressing up the hill. |
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07-28-2016, 01:15 AM
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#33 (permalink)
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EcoModding Apprentice
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Oh. Forgot to add. You'll find a LOT of value in this MPG research done by Cummins Diesel:
http://cumminsengines.com/uploads/do...whitepaper.pdf |
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07-28-2016, 08:18 AM
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#34 (permalink)
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Master EcoModder
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Quote:
Originally Posted by ChewChewTrain
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That was a very nice write up. Thanks!! |
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07-28-2016, 10:24 AM
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#35 (permalink)
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EcoModding Apprentice
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Quote:
Originally Posted by Joggernot
That was a very nice write up. Thanks!!
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SURE! Cummins Diesel musta spend quite a bit on that research. All we need to do is JUST read! Sorta like someone else cooking a fabulous meal. All we need to do is just eat!  |
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07-28-2016, 10:49 PM
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#36 (permalink)
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Master EcoModder
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Quote:
Originally Posted by ChewChewTrain
SURE! Cummins Diesel musta spend quite a bit on that research. All we need to do is JUST read! Sorta like someone else cooking a fabulous meal. All we need to do is just eat! |
I can imagine some wags looking at that tire pressure chart, screaming... 120 PSI? ARE YOU INSANE?
(But honestly, truck tires are not car tires... please don't put 120 psi in your car tires...)
For car tires, I recall Capri Racer's shared DOT paper identified gains as levelling off around 40-50 psi but still increasing beyond that... be nice if someone did one for modern LRR tires. |
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08-24-2016, 10:38 PM
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#37 (permalink)
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EcoModding flying lizard
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Quote:
Originally Posted by ChewChewTrain
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Awesome read, thanks for posting that. I always wondered about the effect of road surfaces on rolling resistance, and now i know! I'll try to use that to my advantage when possible. 
I wish more papers were like that, instead of being crammed with graphs of some BS no one understands and being 100+ pages long. This one was easy to read. Thanks Cummins!
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-Kaze o tatakaimasen-
Best trip in V6: 52.0
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Best tank in Mazda: 49.9
Best tank in CBR: 61.3
Best tank in SV: 83.9
Quote:
Originally Posted by MetroMPG
You can lead a fashion-conscious horse to unusual-looking water...
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08-26-2016, 04:14 PM
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#38 (permalink)
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EcoModding Apprentice
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We got a new mazda 3. It has the skyactive system and it's all true. We routinely break 40 mpg, and my wife does 70% of her driving back and forth to work, 7 miles each way. Not a recipe for high fuel economy.
Peppy to drive, fit and finish are nice (steering wheel feels a little cheap).
We love it.
6 sp manual.
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2004 VW TDI PD on bio
want to build 150 mpg diesel streamliner.
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