Upgrades for MPG

I’m a fleet mechanic so here’s how I break it down
First thing, look for anything loose or making noise. Loose suspension, doors, body panels, etc, If it’s vibrating (or making noise) it’s wasting energy.

Make sure the truck gets cleaned, clean radiator, clean frame rails, fix oil leaks, etc

Then make sure everything is adjusted correctly (brakes not to tight, wheel bearings not to loose, maintain the over head correctly.

Finally, verbally abuse the driver just enough to get him to slow down, but not enough to quit or go to HR..... it’s a delicate process!!!

 

Good advice. General maintenance.

 

I installed fleet air foam filters for.2mpg increase - better airflow.

I’d suggest better rolling resistance tires on the drives.

I put the full tilt manifold on, and BW turbo at same time. Definite performance increase.

Sample your oil to monitor engine health/silicon and soot issues.

Calculate tank to tank fuel, monitor closely.

Reduce idling.

Drive on foot unless dead flat ground.

Install pyro and boost to ‘learn’ better habits.

 

When u say watch ur boost and pyro what do u mean . And how to drive by them? When is it ok to break said driving rules ie when climbing a hill?

 

Kenworth & Cummins both cite Steering Corrections Per 100-miles.

Best shocks, zero slop.

 

You want to keep your boost and pyro temps as low as possible because the only thing that makes them go up is burning more fuel. To get the best fuel economy on hills, you want to be In a gear and driving at a speed that would allow you to accelerate if you wanted to.

 

... draft a prime truck. Should be good for a whole extra mile per gallon

 

Hi Greggg, I know that this post is almost 3 years old but what kind of mpg increase did swapping the 14L to a 12.7L turbo get you? Was the 12.7 turbo a VGT or fixed vane with wastegate?