Injector Recommendation, anyone?

[Locomoko]

My 6.5LTD Suburban K2500 is in need of new injectors. I get 15 MPG @50mph, consistently (Hawaii diesel is $4.05) I think I should be doing better. In Alaska, fully loaded (9 pass & luggage) going 70 + I got 17-18 MPG. The MPG has slowly gone down to what it is now. Looking for replacements and everything is stock on the truck. Thanks

[Hubert]

Go back with stock. Delphi or Bosch. Life of injectors is 80-120K miles. Their performance drops off after that. I won't say you get back all of your milage back (could be other things aging too and not optimum) but you should see some improvement. More you'll feel a little more pep to throttle response and probably a little less smoke on start up and launch.

The nozzle wearing out degrades fuel spray pattern / fuel atomization is the reason why.

[Warren96]

How many miles are on your truck, and do you use a fuel conditioner?

[16gaSxS]

If you have a soot trap they get plug up over time and can reduce power and MPG's you might look into replacing it if you have not already. Do this and the injectors.

[damork]

I'd stay with stock units as well. I sold my Yukon w/6.5 last fall and the injectors had 182,000 miles on them and mileage was still holding at 18.5 - 19 mpg, BUT I ran Stanadyne Performance formula in every tank of fuel and credit that to the long life. You should look closely at the glow plugs and controller - I ran OEM glow plugs (AC60G) and controllers and had no problems starting right up. I found my glow plugs failing around 100k and just replaced them with a full new set.