Really bad MGP help

[CTstroker1080]

Hey guys i have recently seen a very big decrease in my mpg in my 2000 f350. I purchased the truck back in the summer time and i was getting about 15mpg around town and 20 on the highway. I just filled up my truck today and found that i am getting about 7mpg. I know that with the winter blend diesel your fuel mileage will go down a little but i don't think that it should drop that much. I changed the fuel and air filter last time i changed the oil which was about 2,000 miles ago. The only other thing that i could think of is injectors but the truck doesn't smoke at all. I really don't know where else to look. The truck is bone stock.

Any input you guys have would be greatly appreciated.

[ToMang07]

Originally Posted by CTstroker1080

Hey guys i have recently seen a very big decrease in my mpg in my 2000 f350. I purchased the truck back in the summer time and i was getting about 15mpg around town and 20 on the highway. I just filled up my truck today and found that i am getting about 7mpg. I know that with the winter blend diesel your fuel mileage will go down a little but i don't think that it should drop that much. I changed the fuel and air filter last time i changed the oil which was about 2,000 miles ago. The only other thing that i could think of is injectors but the truck doesn't smoke at all. I really don't know where else to look. The truck is bone stock.

Any input you guys have would be greatly appreciated.

Was it just 1 fill up with the bad mileage?

I know with my truck, if I fill it too fast I get a lot of foam which shuts the pump off. And then you get a really good reading....foillowed by a really bad one.

[CTstroker1080]

ha i wish that was the case... i have been checking my fuel millage from the very first day i bought the truck and i have noticed the fuel millage has been going down. The truck has 145,000 miles and has never had the injectors or glow plugs ever replaced. So im guessing its time that they need to be changed but i don't know if that is why im getting such bad fuel milage.

[Mikey's250]

Originally Posted by CTstroker1080

ha i wish that was the case... i have been checking my fuel millage from the very first day i bought the truck and i have noticed the fuel millage has been going down. The truck has 145,000 miles and has never had the injectors or glow plugs ever replaced. So im guessing its time that they need to be changed but i don't know if that is why im getting such bad fuel milage.

Mine has 140k miles on it, original everything motor wise, and my mileage has been getting bad for the past 4-5 fill ups. Was holding a steady avg of 15-16mpg now Im getting 12 and this tank Im at a 1/4 tank and have only went 200 miles.

[CTstroker1080]

1/4 tank and have only went 200 miles.

Yeah man that is exactly what i get in my truck. I have to figure this problem out fast especially with the price of diesel going up so high.

[EArmsF350]

When you get it figured out, I will assume you will be a rich man by then!!!