duramaxdude
Member
Is there ant king of gauge or moniter system out there that can tell you your MPG as you drive. They have them for cars but is there one out there for a 6.5.
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MPG gauge
- Thread starter duramaxdude
- Start date
Woody35
Active Member
my right foot
You are so f***ing funny... That is such a funny response...:thumbsup:
Anyhow, the MPG gauge is just a vacuum gauge and works only in throttle-plate-that-generates-vacuum gasoline engines.
Regards,
Franko
Anubis
Being fat sucks
how about adapting one from a big rig? Not sure how they work, but they are accurate ...... prolly the only thing that works right on my Cummins ISX.......
NVW
Well-Known Member
Well if some computer savvy guy could relate fuel mm3 to mph they could come up with a formula to give mpg.
Odlaw
Redneck
Not sure if you're referring to the old vacuum 'fuel miser' gauge or are you talking about a flow meter?
I had one of those Stewart Warner vac/fuel miser gauges in my old 78 Ford F150 Ranger XLT w/ 400m engine (back when the Ranger was still a full size truck). It would get 18 mpg on the highway.
I use my boost gauge the same way - more boost= more fuel.....less boost = less fuel. When running back and forth to work (empty) I don't let the boost get over 5 psi. I'm averaging a little over 20 mpg.
I had one of those Stewart Warner vac/fuel miser gauges in my old 78 Ford F150 Ranger XLT w/ 400m engine (back when the Ranger was still a full size truck). It would get 18 mpg on the highway.
I use my boost gauge the same way - more boost= more fuel.....less boost = less fuel. When running back and forth to work (empty) I don't let the boost get over 5 psi. I'm averaging a little over 20 mpg.
A flow meter as above is the only thing that world work. Except for the fuel return from the injectors and the IP being a 'leak' back to the tank. You could monitor both.
Boost is a good indicator of load.
The computers do not have a provision to calculate this or drive a gauge or display. Some programmers may have this option on the 'newer' trucks. Not gonna do my 93...
Boost is a good indicator of load.
The computers do not have a provision to calculate this or drive a gauge or display. Some programmers may have this option on the 'newer' trucks. Not gonna do my 93...
ak diesel driver
6.5 driver
Seems like 88gmctruck said it could be done on OBD2
- Staff
- #9
OBD2 is easily done, but OBD1 would require a rather expensive FLOWSCAN meter to hooked in to monitor the feed and return lines for fuel actually used. OBD2 can be done with a simple guage that plugs into the data port.
http://www.scangauge.com/
http://www.scangauge.com/
duramaxdude
Member
Oh I see. I just wouldnt mind having one to see how its doing.
nobby
Old Timey Diesel Guy
For Scangauge
So what happened on OBD2 trucks between 96 and 98? For 96/97 it specifically says does not work on GM diesel.
Cheers
Nobby
So what happened on OBD2 trucks between 96 and 98? For 96/97 it specifically says does not work on GM diesel.
Cheers
Nobby
packratt
Active Member
Wouldn't bet on it for '98 either. My Scangauge has showed 30+MPG.
schulte
ACCELLERANT!!!
I've also heard mixed results on putting a Scanguage on a 6.5... Might be worth a try though, but I'm not sure if it'd work with your '95.
packratt
Active Member
The other readings work fine with the Scangauge. The only issue I've found is the MPG calculation.