fuel return lines/hoses [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: fuel return lines/hoses


V8 Perkins Dude
04-30-2008, 05:04 PM
would old, possibly original return hoses on the injectors cause poorer fuel mileage?:)

0lee
04-30-2008, 05:42 PM
Yes if they are leaking. If the return is plugged, the injectors would stop working.