I'm at 151,000 miles on the odometer ('95 K2500 "F") and am thinking of replacing the injectors before I have trouble down the road. I suspect these are the originals. I'm getting 13.5 mpg consistently with 4.10 gears and am not hot rodding this truck much at all. I've read that worn injectors would cause mileage to be sacrificed. This is a subject I know very little about and would value some advice on this. I also have a Bill Heath Maxi-torque Eprom and will be upgrading to the 2.0 recipe shortly if it makes a difference.

Thanks,
SnowDrift

My dad' '96 is due for injectors and a timing chain at the least at 250,000 mi on the originals. His milage still is ok at ~16-17 highway on 4.10's 285/75/16.

I have 182,000 on mine with original injectors. It runs so good I don't want to change them and take a chance on screwing something up. I get about 12.5 MPG. I do use PowerService regularly.

I am in the same boat. I believe I have the original injectors ( as I bought the truck from the original owners and they had a bunch of receipts , none of them for injectors ). I have 145,000 on mine. My mileage I believe should be higher. With all the mods I ve done, I would have figured an increase in mileage. But never really saw a huge increase, other then power. Now I do drive the truck with a heavy foot sometimes. But my biggest change was from 245 75 16s to 285 75 16s and I lost about 3 mpg. Now I just installed 265 75 16 and gained about 2-2.5 mpg. I am averaging about 17-18 mpg per tank combined. roughly about 450-490 miles per tank. I ve been thinking that I should be getting better mileage then that and I believe the injectors are suspect. But it doenst run bad and with jspingator idea, I dont want to ruin a good thing. I was toying with the idea of marine injectors, but after talking to quite a few people found they really arent worth the money, your better just using stock injectors at half the price.