Im just wondering if i shoud expect crappy mpg while breaking in the truck? I am still on the first tank of gass with around 250 miles. Looks like tha gas milage is pretty low although i havent checked it officially yet.

Thanks,

Chris

 

I'm surprised you're getting that good of mileage running gas in a diesel! Just kidding. Your mileage should improve after the break in period. Keep track of the mileage you get each time you fill up and you should see an improvement. Do you have an F250 or 350? What is the configuration of your truck? 4x4 or 4x2?

 

It is a F-350 4x4 supercab. Are the F-350s much heavier than the F-250s?

 

I don't think they're much heavier, assuming you have a SRW. I believe the only 2 differences between the F250 and F350 are 4" blocks used in the rear on the F350 and 2" on the F250 and the GVWR is 9900 for the F350 and 8800 for the F250.

 

Yea, it is a SRW. Thanks

Chris

 

Just some realllllyyyy goooood advice

DONT EVER PUT GAS IN YOUR DIESEL

DONT EVER PUT GAS IN YOUR DIESEL

DONT EVER PUT GAS IN YOUR DIESEL

DONT EVER PUT GAS IN YOUR DIESEL

oh by the way

DONT EVER PUT GAS IN YOUR DIESEL

 

"Just some realllllyyyy goooood advice

DONT EVER PUT GAS IN YOUR DIESEL

DONT EVER PUT GAS IN YOUR DIESEL

DONT EVER PUT GAS IN YOUR DIESEL

DONT EVER PUT GAS IN YOUR DIESEL

oh by the way

DONT EVER PUT GAS IN YOUR DIESEL"


I think i get the point. What is the proper term? Diesel milage?

 

Fuel mileage

 

I'm getting around 16 with mixed city/hwy driving @65K miles

 

I am getting about 15 miles per gallon of diesel. That mileage consists of highway and city driving.

When I tow my trailer, which weighs about 8,000 lbs loaded, I get about 9 MPG. Keep in mind that I pull this trailer up some pretty steep grades (about 7 %, I think) and I am impressed how the truck pulls. I do not keep my foot in it and I am easy on the engine. The truck will continue to gain speed the whole time up the grade.

Anyway, I am getting off the point. Oh, my truck also has 74 k on it.

 

I almost did the first time I went to get fuel.

Steve

 

At 250 miles, I think it's way too soon to seriously evaluate your mileage, and the most accurate way is still the old pencil-paper-calculator method at the fuel pump.

One thing that *will* throw you off is that it's sometimes difficult to consistently fill the tank. Diesel foams a lot and to really top the tank off you need to fill it until the nozzle clicks off, then s-l-o-w-l-y fill it the rest of the way over a minute or three. I can add several gallons (or not) after the tank seems full. If you don't do that, you'll get inconsistent mileage calculations. That's why you should look at an average over several fill-ups.

Axle ratio seems to make a big difference, most have 3.73s, but if you've got the 4.10 towing gear, your mileage will take a hit.

DRW hurts mileage a bit.

Idling a cold engine a long time to warm it up eats a lot of fuel. And it's not good for the engine, either.

Driving fast hurts mileage on the PSD. They've got all the aerodynamics of a brick. Lift kits seem to hurt mileage a bit. There's a *big* difference between driving 70-75 and 60-65 MPH.

If you live up north, using winter blend diesel, usually a mix of #1 and #2 , will hurt your mileage by a few percent over using straight #2.

How and where you drive makes the biggest difference of all.

For all these reasons, you probably need to go a while to get an accurate averge.

To answer your question, I drive an '02, 4x4, SRW, x-cab F-250 with 3.73 gears. About 12,000 miles on the clock. I use synthetic oil in the engine, tranny and rear axle. The only mods on the truck are an AFE Magnum intake and a SCMT, and I don't plan to make any others, I'm not a diesel hobbyist and it makes more than enough power for my own needs. I also have a modified 460 gasser 4x2, and that one is my go-fast play machine (very expensive toy these days!).

Carrying around a few hundred pounds of tools in the tool boxes, not towing, I get anywhere between 15.1 and 19.5 in the winter. The absolute best I've seen was around 22, highway miles only, early last fall on a 400 mile road trip. My truck doesn't have the MPG computer, this is figured the old fashioned way. It's really a plain-vanilla XLT work truck.

Good luck.

 

Thanks for the tips. I apreciate it.

 

Just for your info, I get about 18.5 to 20 on the open road. Around town around 16, towing 13,000# 5th wheel trv trlr, about 12-13 unless pulling real steep grades for real long streches. We won't go into that.

Luv my PSD

Bill B.

 

My milage is the same a Hodge's. Hwy, city, and towing.