One of the things that will put a bunch of error into manual calculations is if the truck is not at the same angle side to side and front to back the fill up will never be the same. I get the feeling the small error I see is more on my part than the computer. It is very difficult to get an exact fill up every time. Just for fun change the amount by as little as 1/4 to 1/2 a gallon and see how much it throws off the mileage calculation. If I am going on a long trip I will reset at the start of the trip when I fill up and not reset for 3 or 4 tank fill ups. Then I will take the receipts and total up the fuel purchased and divide by the distance to get a more accurate result.

 

I can't do that cause my driving changes from hour to hour. Would be nice though.

 

What gauge are you refering to? I'm useing the amount of fuel delivered display on the fuel station pump. If you are talking about the "in dash "gauge all I can say is "WOW".

 

I am talking about the 1 in the dash. Why the sarcism? I work w/ guys that won't let their truck get under 1/4 of a tank. So when the needle reaches 1/4 their getting fuel. Aight now thetes not always the exact same amout left or been used once you got to 1/4. Sometimes alittle more or alittle less fuel has been burned. Surely you can understand that.
Me I let mine get to "E". But if I don't know the area I'm at I'll get fuel alittle earlier.

 

The dash gauge is highly inaccurate. The only way to tell how much fuel you used is to go back to the same pump and fill until it shuts off - the first time.

 

In a couple weeks we will be making our first camping trip of the year, I'm gonna do some better figures. I am gonna fill up at the same fuel pump before leaving and when I get back and check the mileage by the meter and by hand. I bet in the end my 7.3 will still be better then all your V10's in here!

 

Not to stick up for the v10 guys or anything, but they admit their not getting the same mileage.

What they are saying, is that yours won't be good enough to justify the added diesel expenses.

 

We already establish that diesel doesn't have additional expenses, that will not be refunded at the time of sale.
I keep my opinion that V10 owners post here seeking excuse for their poor decision. Fact that they have to make up the numbers to even have the excuses speaks for itself.

 

I've never argued that. You're basing your diesel opinion solely on your 7.3L experience. To date, the 7.3L PSD, IMO, has been the best "all around" diesel used in the Super Duty trucks. The 6.0L is great when it's running, and gets good mileage, but repairs will bankrupt you. The 6.4L drinks diesel like the stuff is free, and those are starting to have serious problems pop up (rocker arms, HPFP). Again, repairs will bankrupt you since most repairs on the 6.4L need the cab off to complete. The verdict is still out on the 6.7L-I'm not making a decision until I see some of them worked like we work our V10's around here, and have comparable mileage on them to see if they're going to have odd and expensive repairs.
I don't have a problem with a diesel powered truck. I would own one right now if I could have had a 7.3L with a 5R110W Torqshift behind it and the tow command system. I own diesel power equipment, and if the auto manufacturers would sell diesel powered vehicles here like they do in Europe, I would probably own one-IF they would keep replacement parts availability and pricing at a reasonable level (3.0L twin turbo diesel Jaguar XJ comes to mind). I would have a PSD Excursion right now if the 6.0L wasn't so terribly unreliable. I sat on the fence for months when I was shopping for one. I just cannot and will not put my vacations and sanity at risk of being stranded on the side of the road due to a failure of parts that should not be failing like they do on those engines.I don't really want a 7.3L Excursion because I dislike it in front of the 4R100. I honestly don't really care too much for the 2V V10-it's a pig compared to the 3V, and the 4R100 cripples it with terribly spaced gear ratios that makes it feel much slower and more lethargic than it really is.But, the V0 was the only option that I felt was reliable enough for me to purchase and not worry about when I'm vacationing in it, or when my wife is driving it around. My F250 was the same-other than a minor repair that I made worse by ignoring, it's been flawless and will tow anything I hitch up to it.. Yes, they both drink more fuel (but in the real world, not much more than a PSD in the exact same conditions), but are is just as capable of their PSD counterparts in doing the same job. Makes me wish for days like the mid 60's when you could pick your vehicle and "ala carte'" your options and just have factory build it how you want it.
JL

 

While I generally agree with that, I think the v10 is an excellent option for lots of people.

 

Problems and really bad mileage seem to go hand in hand with trucks that don't suit their job.

Again, not to defend the v10 guys, lol, but this is a reason that a gas motor would be a good option for some people.

 

The 7.3L PSD's never had these problems. Claiming "use of the truck" as a cause of these problems is an excuse.
I know dozens of people that use the 7.3L's exactly like others use a gas engine vehicle, and they never have an issue. The 6.0L and 6.4L engine have problems that they should not have. SERIOUS problems.
JL

 

The only problems I'm aware of on the 6.0 is the head bolts.

Injector / fuel system failure, Variable vane turbo issues, I attribute to the fact that people we're used to the older trucks.

The 7.3 didn't have all the emission junk on it, thus there we're fewer problems. There were owners that bought these for the mileage, or cause they liked diesels. The newer trucks are not as accommodating.

Again, this is a good reason to consider a v10 if you don't really need a diesel.

 

Are you adding together the cost of the engine, maintance, fuel price and repairs? If so then no fuel milage doesn't cover that. Every body keeps wanting to compair grapefruits to ornges.
Fuel mileage replaces fuel cost. Apples to apples.
Towing my diesel still gets better milage and really does a better job than my 5.4. Mt my wife's 6.2l is getting compareable milage to my psd. Loaded it dropped to 13 mpg. We're going to watch this this summer.
Cost of maintance there's no way to get that money back. Its the cost of owning a diesel.
Cost of the engine: that's a touchy subject. If your buying a brand new truck the cost is around 7k more. Well when you trade in you get 3k-4k more. So you shrink 3k-4k. Well you should have already depreciated that much on your taxes so you've been reinbursted. If you bought that diesel in the last 3 yrs you wrote the whole truck off on taxes. Yes you do the same for the gasser but still got your money back. The only expence I haven't found anyway to justify is the maintance. I mean I write it off but still its there.

 

I agree w/ you. You established when it was full, but how do yoy establish when ? amount of fuel has been used? You can let the engine die put in ? Gals then figure how far you go until it dies again. I'm really not up for that.