new f-250 mpg?

DaNag · Dec 3, 2004

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-So if money is not an issue, so these items you stated are a wash (Pop in a chip, open up the exhaust and intake, and add some temp/tranny/boost gauges...) That is about $1,500
added on.
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You missed the logic. Those items are optional, and if you chose to do them, the cost would be in the same ballpark regardless of going gas or diesel. Plenty of folks are quite satisfied with stock performance. Point was - choosing to do this optional performance enhancement on a diesel gets you more bang for the buck, and is less risky; the big three seriously de-tune the diesel engines they use in pickups.

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It money was a non issue this thread would not be here or 99 of the people here. We would have the dealer do all.
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I never said money was not an issue - I suggested that if you do an honest analysis, it's not a realistic factor over the life of the truck.

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Here are my savings from me going from a diesel to gas (in my application)..in the attachement above.
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As has been mentioned already - what possible good does it do to compare a gas car purchase to a diesel truck purchase? Even if it made sense, your facts are way out of whack.

- You are in the extreme minority with respect to a 54 cent a gallon price differential between diesel and gas. Add to that, you are comparing fuel mileage between a gas car and diesel truck. Just how does that help somebody make a truck decision?

- You listed 8 fuel filters for 20K miles. 2 would have been necessary, less if you add in an inexpensive pre-filter.

- You list 3 ATF filters for 20K miles. Typical usage is 1 per 30K miles. Same as a gas truck.

- You list 96 quarts of synthetic tranny fluid (3 changes) for 20K miles. Huh? As with the filters, one change per 30K is typical. Same as gas truck.

- You list 7 oil changes for 20K miles. This is absurd for dino oil (5K is the norm), but even more absurd since you are listing synthetic oil at roughly 4 times the cost. Most folks don't use synthetic in diesels, as the protection is negligible compared to gas engines due to the higher oil capacity and more frequent change interval. You won't find a diesel fleet manager who uses synthetic.

Glad it worked out for you, but your stats are meaningless for anyone deciding between gas and diesel trucks.

gsxr1100 · Dec 3, 2004

You stated, “My advice would be to remove money from the decision process. There are many more important factors to consider”. Money not a realistic factor? What planet are you one?????

#1 - If you read it correctly I used (8) fuel filters in my 80K miles (do the math). That is 80K miles and used 8 filtes = 10K mile intervals (as noted in the able) as per FORD on my 97 PSD. Oh bythe way that is the cheapest fuel filter and is by by Racor. Now the same filters are $20 each. Cheaper filter?

#2 – I had 80K miles and used 3 ATF filters; so I replaced them about every 30K miles, as per FORD.

#3 – As I noted on #2 I did 3 ATF services and the PSD tranny held a lot of ATF fluid. I had to change it since the E40D tranny is JUNK! The quarts used should be 54 not 96. So that will bring the cost of diesel down $333.XX. Does not even do anything to the bottom line.

#4 I listed 7 oil changes since again if you read that table correctly (just take #’s into consideration (ie 8 filters and I changed every 10K that is 80K miles total) , If you take 7 oil changes and I had 80 K miles on the truck, hence you get 10K per change on average.

Since when is synthetic 4X dino in price? Where do you buy these fluids? Also you should use synthetic in a diesel since the esters are way better and the additive package will keep WAY longer then dino. It is proven. Just do some homwork on oil anaysis.

My stats are meaningless??? Math does not lie. The table up top is only savings, as noted in table, for 20K mile or 1 year for me. So if I had the truck 4 years, do the math. That is over $4,000 in fuel savings for me alone in that time duration! Nevermind all the other stuff diesel needs.

Again in my application diesel was a waste in many ways. I am comparing what I used my diesel for and my car for. Apples to Apples and diesel lost, big time.

Meaningless..you crack me up!

DaNag · Dec 5, 2004

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#1 - If you read it correctly I used (8) fuel filters in my 80K miles (do the math).
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If you wrote your attachment correctly, you would have stated 80K/4 years somewhere - you didn't. The only mileage listed is 20K.

And if your maintenance numbers in the attachment were for 80K/4 years, then why is the total savings (2756.06) labled a one year savings?

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My stats are meaningless???
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Yes.

Primarily because, as has been mentioned several times, you are the only person here who's not discussing gas vs. diesel trucks. Your data is based on a car purchase vs. a diesel truck - please point it out if I missed it, but nobody seems to be discussing such a comparison except you.

Here's a valid truck comparison - using your own fuel pricing data, corrected for the discussion at hand.

The average gas truck that compares most closely to a diesel is going to get somewhere around 12 MPG. Even at your highly unusual price differential of gas vs. diesel, you'll spend less per year on fuel - 20K miles @ 12 MPG = 1667 gallons vs. 1124 for diesel. Using your gas pricing (1.83), that's $3,050 a year - $499 more a year than the diesel truck, even with your crazy diesel prices.

We can toss your tranny and differential maintenance costs - those would be the same between gas and diesel trucks. That leaves fuel filters and oil changes. 3.5 gallons of Shell Rotella + Motorcraft filter at Wally world is $35 - that's $140 a year in oil changes at 5K intervals, using your 20K a year driving.

So...with $360 left over, you can still buy two fuel filters ($24) , and have $300 more in your pocket than you would with a gas truck. Every year.

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Meaningless..you crack me up!
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I guess it's a good thing we humor each other so...

BB_TX · Dec 6, 2004

Without getting into the arguments, here's mine.
2004 F250 diesel, auto, 3.73 with 9500 miles - at 70%hwy/30% city I am getting 17 mpg if I stay below 70 mph, 16.5 if I run 75 mph or so. About the same as my previous '97 F150 5.0 gas.
Around here diesel has almost always been cheaper than regular gas. When I bought it at the first of July, diesel was 4-10 cents cheaper than regular. Then went to 4-6 cents higher than premium. Now about the same or slightly less than premium.

gsxr1100 · Dec 6, 2004

It was a quick and dirty comparison and you get the point. I am sorry I did not know I had to make my table 100% for you to understand. I will say this and only this, diesel was a complete was in my application .I guess I had to state that again.

If you want to compare a gas to a diesel truck. You say average so I will use that. 12 mpg and diesel will be around 14 to 15 towing in my old PSD. Using those numbers for a gas, that YOU supplied, diesel will not do anything. Again I have owned diesel and gas trucks and they equal out. Diesel do not break but when they do, the price to fix offsets the added savings.

5K oil changes? Who does that? Plus with Shell? Oh boy…..

Next time you do some equation, using the free software on your PC called MS word, Excel…

PS here is your savings in the attachment. Even label 100% for ya. Look at the savings with a diesel. You are rolling in cash..

You have been sucking on to much diesel fumes.

cowboydoc · Dec 6, 2004

Da Nag I'll add a couple more things to this bogus view of a diesel. Per the owners manual the fuel filter change is not 10k, it's 15k. The intervals for changing the oil are also 7500 not 3 or 5k for highway driving. If you're using amsoil, which why would you unless you're running a bypass system and want to void your warranty, you should be going 20k plus on oil changes.

Also the #'s for highway driving go up substantially for transmission, differential and highway driving.

Those #'s are seriously flawed for all but someone trying to go way over the edge on maintenance of a diesel which isn't necessary by any means.

gsxr1100 · Dec 6, 2004

My 97 was 7,500 but dealers were 3 and 5. If you are towing you are not to go 7500. You must use servere since towing will stress oils. I would not go that long on dino oils.

You will not void the warranty when doing extended drains. Rich you need to come up with a better line then that. That has been stated time and time again..Old news and wrong..you do not need a bypass, nevermind….

If my comparison of what I was doing and did flawed, show me. I have other things I did but I guess you know about it. Again it is a waste for me and my application.