Diesel versus gas maintance

   / Diesel versus gas maintance #1  

sandman2234

Super Member
Joined
Dec 4, 2005
Messages
6,015
Location
Jacksonville, Florida
Tractor
JD2555 and a few Allis Chalmers and now one Kubota
Well, for the last year, I have been considering buying a heavier duty p/u so I could move my tractors without having to drive them to their destinations. A used Ford F350 has been chosen, and maybe one day I will actually take pocession of it, but that is another story.(2000 model with 7.3 and standard transmission) I have a few questions about diesel p/u's that hopefully can be answered easily.
What am I looking at as far as maintance compared to a gas engine. Is there anything that has to be done that a gas driving person wouldn't think about, or things that are done more often, or not at all?
With a gas vehicle, you give the throttle a little nudge, and ease out the clutch. With a tractor trailer, you will burn the clutch out doing that, as you let the clutch out and then give it throttle to prevent "slipping the clutch". Which was do diesel p/u's do it? I will probably figure that one out the first time I actually drive the chosen truck, but for now I thought I would ask.
I am not going to ask about fuel mileage, but wondered if there are any tricks to installing a fuel extender (larger tank). I probably won't need it, as the truck won't drive far to get me to work and back and when toting a load, it will only go about 300 miles, but i was curious since I am only about 30 miles from a cheaper place to buy fuel, but buying it for a single tank doesn't make that much of a savings. I could probably buy all my fuel up there if I add about 100 gallons of capacity. May or not make any financial sense, jury is still out on that one.
Fifth wheel hitches...
Truck has one, and when I go to pick it up, I will also pick up a well used trailer. Makes sense for what he wants for the trailer just to load my p/u on it and drive back home.(900 miles) Recently replaced axles and tires on the trailer, so that shouldn't be a problem. I can handle a tractor trailer, so I don't think this smaller version is going to be a problem, but there are always little tricks to everything. The truck is getting very limited miles since Feb, so is there anything I need to do before starting out on the road with it?Any suggestions? David from jax
 
   / Diesel versus gas maintance #2  
I have a 2000 7.3 diesel too, this was my first diesel after driving gas trucks for many years. There is very little difference in maintenance really assuming you were properly maintaining the gas trucks. The fuel filter is a 10k interval and the coolant needs to be maintained a bit differently than a gas truck.

Stock, the 7.3 isn't that impressive. It will do the job of course and won't work hard to do it but it just doesn't scare you with speed like you may expect.
 
   / Diesel versus gas maintance #3  
I have never owned a diesel truck so I can't be much help to you. But about 5 years ago my Chevy dealer sent me a shop price list for various automotive jobs including regular grease, oil and filter changes. I remember the diesel was twice the price of a gas pick-up for the regular service. So there has to be a difference of something some where.
 
   / Diesel versus gas maintance #4  
I have had 3 Ford Diesels.

In a nut shell:

Oil changes: Filter is about $15 and takes 15QTS of oil. I run Dello 400 or Mobil Delvac. I do 5000 mile oil changes.

Fuel Filters: Change it every 15,000 miles or so. You dont have winter fuel problems in your area but a good dose of a additive is not going to hurt a thing and will keep the creepy crawly's at bay.

Tranny Filer: Change it every 15,000 miles or so. I change the fluid every 30,000 miles.

Tire rotations: Do it every other oil change or you will wear the rears out pulling heavy loads.

Air filter: Change it every 15,000 miles or so.

I work my trucks very hard and this has worked for me. 90% of my miles are pulling loads 10,000# to 16,000# and the occasional 25,000# load so they are not grocery getter's at all.

Also, if its 4x4 use it once a month. I have never had a 4x4 issue other than a failed transfer case in a 89 GM at about 30,000 miles. I have owned 4x4 trucks since the mid 80's and never had even a bad hub. I use my 4x4 weekly and contribute it to that.


Chris
 
   / Diesel versus gas maintance #5  
You should be happy with your new truck. That vintage motor is (IMHO) the best that Ford ever offered. You'll spend a few more bucks on maint. (than gas) but mostly to make it last, not to make it run! It will take 17 qts with a filter change (allways) and keeping up on your fuel filter will add years of life/hrs to your (expensive) fuel system. I've got/seen the 7.3 with 7000+hrs and still going. And one thing that the new diesels can't do that the 7.3 can is run on heating oil! I use one off road and run red fuel only in it.
 
   / Diesel versus gas maintance #6  
I have a 2002 F-250, and really like it. I have to say it was way underpowered as delivered. Installed a hyper-tech programmer at 4000 miles. Makes a world of difference in the tow mode. Not one problem to date.
One really helpful series is on youtube: ‪6.0 vs 7.3 POWERSTROKE FORD DIESEL 1 OF 6‬‏ - YouTube
He actually has a 7.3 with 900,000+ miles
 
   / Diesel versus gas maintance #7  
I have owned two Ford diesel pickup trucks. Bought both new and current truck is 2000 F250 4x4 crew cab. I have held on to it because most people say this is the best diesel engine in a Ford. Wether that is true or not is anyone's guess. Diesel trucks cost more initially, heavier, general maintenance is approx. twice as expensive, fuel costs more, and parts (especially before the aftermarket catches up) are much more expensive than the gas versions. And heaven help you if you have a breakdown on the road somewhere. I live in a smaller town and have a local Ford dealership but finding a technician who is trained to know all about your vehicle when under warranty is very frustrating. I wish I had kept a log of the many times in and out of the dealership just for seemingly simple fixes. On top of that they would have my truck for a week each time. For example the gears in the electronic shift portion of the transfer case wore out and the dealer said that I shift in and out of 4x4 too much. Well bs on that. A $40,000 stickered truck should be able to give good long term service if well maintained and operated. But I feel now I understand most aspects of how this truck functions and have educated myself how to go about repairs. I work this truck very hard also. I don't want to admit how much weight I have hauled because people wouldn't believe it anyway. When you are on and off the farm if you don't have 4x4 with a diesel truck you can't go anywhere in wet weather. I really came on to tout the benefits of the diesel pickup and there are many. I guess I just like driving a diesel pickup.
P.S. Always have an extra gallon or two of fuel, a fuel filter and a cps sensor.
 
   / Diesel versus gas maintance
  • Thread Starter
#8  
Thanks for the advice so far, very informative.
Franklinute, or anyone...I understand the extra fuel and fuel filter, but what is a CPS sensor? and where would it be, what would be the expected symtoms/actions causing me to want to find and replace it?.
Chris, on the fluid change for the tranny, does that include a standard shift transmisson??? 15 to 17 quarts of oil at 5000 mile is like changing a gaser every 1700 miles as far as expense, but oil changes are cheap compared to rebuilding a worn out motor from too few oil changes, no doubt!!
Highbeam, if it will even move my tractor, it has got to be better than this 4.8 that I am currently driving. It would probably scare it into not starting if I backed it up to the trailer that I haul my 7000 pound J.Deere on, and that is with the trailer empty, lol.
My old 91 Chevy will at least move it, but that durn thing is too old to be doing that kind of abuse to it.
David from jax
 
   / Diesel versus gas maintance #9  
CPS is the cam position sensor. Located on the front of the engine, accessed by removing two bolts. Seems to be the most common part to fail on the 7.3 Powerstroke engine. I never had one go out but it's good to carry a spare.

It's a good idea to change the fluid in a manual trans too. No filter that I'm aware of.

The 7.3 Powerstroke is a strong engine. It was rated at 235hp and 500 lb/ft torque in '99 and eventually increased to 250/525 by early '03 when it was replaced with the 6.0. Don't worry about it pulling your trailer.
 
   / Diesel versus gas maintance #10  
I have a 99 F250 w/ 7.3 PSD and a 6 speed manual. I regularly tow 8-10K for long distances. I have an aftermarket ceramic clutch (LUK) that I installed when replacing the clutch fork (it was a bad design for 99).

I run a Superchips microtuner on max power all of the time. I average 16.5 MPG mixed driving, hand calculated, not towing. I get 11-12 MPG towing my 32' enclosed trailer on the highway (usually NH to Myrtle or Daytona).

Truck has 180K and I have replaced one CPS. I will keep this as long as the motor last or until the body falls off!
 

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