Tahoe diesel claims 80k payoff in diesel fuel economy

[Bearsixty7]

I think a lot of people don’t understand all the factors that go into fuel economy. Winds, using the air conditioner, bad roads, your speed, driving in town or out on open highways, all affect your fuel mileage.

And having the fuel tank to the exact same level before and after the run. I know on all my Superduties I've owned the fuel station pump will shutoff but another 3 gallons can be pumped in before fuel is actually visible down in the filler hose.

Every vehicle I have owned or rented that had MPG readout, the vehicle computed mpg was always higher than the actual hand calculated value, usually by 10-15%. This is across various Ford's and Chevy's, haven't owned or rented any Dodge/Ram/Chrysler vehicles.

 

[dodge man]

I had a Dodge with a Cummins that would also take a few gallons after it shut off the first. Diesels seem to do that but not gas powered vehicles. Some of that could be the foaming of diesel I see.

My F150 seems like the mpg meter is spot on or within 1/2 mpg. I have had some vehicles that are off up to 1 mpg.

 

[TxSteveS]

I reset it every time I fill up and watch it religiously. It’s honest. Maybe your friends dog it too much! I drive 2 hours up into the mountains almost all highway 55-70mph (5500-8600 ft elevation gain total) then back down. That is 23 mpg. I do it every week.

When I lived in Denver and had my old Ford 7.3 diesel, the best mileage I got was driving in the mountains. I gained more coasting downhill then I lost going uphill.

That probably has a lot to do with it.

 

[TxSteveS]

Something else to keep in mind is that 3.0 GM diesel requires an oil pump replacement at 150k miles. That requires dropping the transmission (and transfer case of 4wd).

Gonna be expensive.

 

[Hay Dude]

Something else to keep in mind is that 3.0 GM diesel requires an oil pump replacement at 150k miles. That requires dropping the transmission (and transfer case of 4wd).

Gonna be expensive.

I didnt see where they said it was “required”. I did see where they said 150,000 was the minimum time for replacement and some may go much longer before needing replacement.

 

[Jchonline]

When I lived in Denver and had my old Ford 7.3 diesel, the best mileage I got was driving in the mountains. I gained more coasting downhill then I lost going uphill.

That probably has a lot to do with it.

Regardless, im still getting 23!

 

[arto98607]

Something else to keep in mind is that 3.0 GM diesel requires an oil pump replacement at 150k miles. That requires dropping the transmission (and transfer case of 4wd).

Gonna be expensive.

I bet it will be expensive to replace - not only the oil pump but I predict the "wet belt", high pressure fuel pump chain and the long camshaft timing chain will also get replaced at the same.
According to the Engineering guy in the video, the "service of the wet belt is not that difficult" & no service required for the timing chain!

Sounds like the engine oil pump is designed for maybe 150,000 + - ? miles, after which the oil pan and transmission will have to be removed.


Looks like a fine engine but sorry not for me!


This is the back of the engine:

 

[Hay Dude]

Probably best to ask a shop that has done a few to give you an estimated cost. It may not happen until 200,000 miles. Also have to subtract cost for oil pump replacement on other engines. I replaced oil pump and timing chain on my gas Tahoe at 180K.
If Tahoe diesel pays off at 75K or less, then another 75K it is money ahead. Even if it goes the minimum 150K and needs belt, thats a lot of gas money saved, but the belt may go 200K?
If Tahoe diesel goes 200K on OEM belt, then 100-125K ahead of gas On fuel savings?

 

[MinnesotaEric]

frankly, i'm not responsible enough for an electric vehicle. what do you do when you get up in the morning and realize you didn't plug it in the night before? i've forgot to fuel up before and had to grab 5 gallons from the shed before I left for work, or maybe i had just enough to make it to work or a fuel station, but not enough for the round trip? wish i didn't forget stuff, but occasionally i do. also, how to do you take it on a trip? i've done 800-1k miles in a day in a truck. not sure what you can get on a charge, but i'm thinking that a full size truck won't do anywhere near half that.

I can still use my gasser truck that is worthless to trade in because it has over 100K and over ten years on it. Or the AWD car if it isn't too deep of snow. its not like I'm running out of parking space. No, no, my problem has always been a lack of a shop.

Imagine same scenario and you need your EV to rush someone to a hospital, help a neighbor, etc.

The EVs are faster than gassers. In fact, I'm really impressed with the EV heavy equipment but wish their prices were lower. Here is a blog that gives and overview of our potential future.

Electric Dreams: Will Heavy Construction Equipment Go All-Electric?

Electric Dreams: Will Heavy Construction Equipment Go All-Electric?

www.constructconnect.com

 

[mikester]

My 7.3 f350 dually gets about the same. But I rarely drive it for in town trips, most of it's mileage is with towing a trailer between Alexandria, Va and Fulton, Ms. I got the big truck to do work, not carry groceries.

Most guys drive the big trucks with one person in the cab and nothing in the box.

Maybe thats why they also buy pickups with 4 foot beds aka 4WD minivan with an outdoor cargo area.