O4 379 MBN 24234 C15 Cat Poor fuel and power

379 pulling a tri-axle dump trailer, grossing 95K and average 5.5

 

Rat, If your having trouble with vibration and power/fuel you may have a faulty injector. If there is nothing wrong with the engine try having the low idle adjusted, may take away the shake when you're trying to sleep, all trucks have a resonate frequency due to the chassis length (like a big tuning fork) if the engine RPM is close to this frequency you can get a bad vibration. I had a Western Star that would shake your fillings out at 700RPM if you stood on the tank step, cut the low idle to 650RPM, problem gone completely.
Every thing out here is 96000 or more and I dont every see any non Acert C15 towing 96000 pounds that gets less than 4.5 MPG (even 475hps) unless there is something wrong with it, even the Acerts are gettting better than 4 MPG.. Most B-Doubles get 4 MPG or better towing 138000 pounds, Acerts get between 3.5 and 4 MPG for same weight.

 

plz send me what i need to replace on my mbn c15 to get more mileage and power with out blowing it up

 

lol wow we

 

i got mbn i went 500 miles at 68 mph then slowed to 58 on 68 g of fuel on flat ground

 

#### 5.5 grossing 95000 whats the problem?

 

no not 9500 80 is all

 

sorry mixed up posts.

 

lose the Baldwin Filters! I know cats are more expensive but they flow more fuel. Baldwins just won't flow enough fuel.