I remember hearing in class that changing fuel filters in between regular intervals increases MPGs, but how true is this? Wouldn’t a bad fuel filter just stop working as the fuel level would rise too high in the filter casing?
On a second thought, it looks like there may be more than just one fuel filter, at least on a DD15 engine. Who knows what fuel filter it’s recommended to change in between regular intervals.
Replacing Fuel Filters Sooner Increases MPGs? How so?
Discussion in 'Ask An Owner Operator' started by PE_T, Dec 30, 2018.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
When I replace fuel filters, my fuel mileage initially goes down a couple tenths
PE_T Thanks this. -
You just change them at regular intervals, unless they clog and truck is running really bad or you got bad fuel from truck stop.. I never heard anyone change them for better MPG.
You can get the FASS FUEL systems for better MPG but it works more on taking air out of the fuel it only work on the older pre emission truck I believePE_T Thanks this. -
Filters need changing once in a while. They collect gunk and other things not permitted into the engine.
Fresh filters will flow really well until they gunk up again. Then your engine cannot drink properly.
I don't ever have filters changed for mpg. The truck will give you what it will give you. The thing is the opposite. NEVER run dry out of fuel. And starve the filters. You might as well have to replace them.PE_T Thanks this. -
the filter on the block has 3 filters and change every pm .. the big glass filter I change when fuel level gets about half way up which takes 200000 miles or more
PE_T Thanks this. -
-
-
-
I wouldn't say it increases fuel mileage but I don't mess around with trying to stretch out filter life or wait until pressure drops off a little bit. I run both Cat primary and secondary filters which have a very low micron rating and will plug easily which is why I change them out around every 8k miles. Cheaper than injector replacement and getting 6 good Cat remans is like hitting the lottery.
blairandgretchen, magoo68 and PE_T Thank this.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2
Related Categories
-
Marten Transport said this today
brank posted Jul 16, 2025 at 11:22 AM -
16ft Box Truck Owners, Where do...
EvansProLogistics posted Jul 15, 2025 at 9:53 AM -
Broker lied about the reefer...
Olec posted Jul 15, 2025 at 8:54 AM -
No consumable products in reefer?
gekko1323 posted Jul 14, 2025 at 7:02 PM -
hauling for UPS, Fed Ex, and...
GAShog19 posted Jul 14, 2025 at 2:37 PM -
turbo identification
pavrom posted Jul 13, 2025 at 4:43 PM -
Truck tires
J.S. posted Jul 11, 2025 at 4:16 PM -
How much would you recommend...
AppalachianDruid posted Jul 10, 2025 -
Do you know how to work on your...
HillbillyDeluxeTruck posted Jul 10, 2025 -
tire rotation
rank posted Jul 10, 2025
Loading...
Recent Threads
-
Volvo D13 Transmission air leak
Friedchicken667 posted Jul 17, 2025 at 10:19 PM -
5 habits that increase kidney...
Chinatown posted Jul 17, 2025 at 9:06 PM -
What are the benefits of...
Chinatown posted Jul 17, 2025 at 8:59 PM -
Garbage Truck Tunnel Strike
mjd4277 posted Jul 17, 2025 at 7:58 PM -
Deep Vein Thrombosis (DVT)
Chinatown posted Jul 17, 2025 at 6:49 PM -
Left a mark alright.
Dennixx posted Jul 17, 2025 at 5:32 PM -
If I had my CDL since 2016, do...
DAX_ posted Jul 17, 2025 at 1:27 PM -
How does this happen?
Kid Cricket posted Jul 17, 2025 at 12:31 PM -
2004 W900 cruise issue
Krys posted Jul 17, 2025 at 10:51 AM -
2004 W900 cruise help
Krys posted Jul 17, 2025 at 10:44 AM
Loading...