I have a 2015 freightliner cascadia dd15 with manual Eaton 10 pulling a 48' spread axle flatbed and getting an average 5mpg at 70mph (10tth gear runs at 15.2rpm and 9th runs at 20.2rpm) avg gross 78,500lbs. I do leave my truck on over night but only if it really cold or really hot. I've been reading alot of forums talking about O/O getting between 6.5mpg and 7.2mpg (there 9th gear is at 13rpm) so I dropped my speed down to 60mph avg 5.6mpg (9th gear runs at 17.5rpm and 10th gear runs at 13rpm) how do I get my rpms and mpg to what they are getting.
Needing help from 5.6mpg to 6mpg+++
Discussion in 'Ask An Owner Operator' started by MagicMan83, Jan 21, 2020.
Page 1 of 5
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Sounds like you have very low rear ends like around 390s or 370s. The only way you're going to get fuel mileage is slow down to about 65 around 1300 rpm. Only other option is change out the rear ends but that is expensive and may only get you a few 10ths.
dunchues, MagicMan83 and AModelCat Thank this. -
Try using a synthetic oil,I switched to Amsoil and the truck runs better, with a flatbed the wind is a big issue, get a scanner that plugs into your ecm and keep an eye on it as your driving and you will see what your best RPM is
I glide 47, MagicMan83 and Milr72 Thank this. -
-
Freightliner? Isnt there a red and green mark on the rpm gauge? Forget about speed keep the needle in the middle of the green. Use cruise when ever practical and SAFE to do so.
When I said forget about speed, I meant driving by rpm should keep your speed legal or close enough. Sounds like your best place is 9th at 13rpm and 10th at like 9-11.
Bear in mind I have been driving 13's for the past 15 years or so. So I might be off cause you have a 10Doealex and MagicMan83 Thank this. -
feldsforever and bzinger Thank this.
-
-
-
-
Is your turbo boost on point ?
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 5