The actual number is $432, but yea 38,000 eats up oil and filter. 33,000 doesn't do any better.

I don't anybody that gets 15mpg out of their v10 so I was being real nice. I was getting 15mpg outta my f150s is why I'm using 3mpg as my number.

 

Hahaha.... I would love to have the new 6.7. But I would also love to have a Ferrari 599. As I'm getting a smaller trailer probably with a GVWR around 6,000 to 7,000 lbs, I'm not sure I could justify the 6.7. I'm not even sure it will be a SD.

My current debat would be to get a the new F150 EcoBoost engine or get a used 6.4. Either way I will be waiting for a year or so. I want to wait for the EcoBoost to prove itself and the used 6.4's are only a couple thousand less than new ones right now, so it just doesn't make since to buy a used SD right now, at least one that is like 2 years old with 30-40k miles; maybe the used truck market will come down in the next year.

But I'm not taking the 6.7 off the table, it's a beast of an engine and would be sweet to have.

 

Yeah, the best numbers I got out of my V10 on any consistent basis was 14. And if you compare 14 mpg with gas to 18 mpg with diesel, your amount saved would be close to the $1000 you mentioned earlier.

In any case, if you can save $500 a year I would highly suggest doing it, specially $1000 a year. The massive fuel costs of these trucks is why I'm not jumping back into one right now, my car gets 20 mpg city and 30 hwy (although it uses premium gas) and has the awesome turbo whine. Maintenance is probably worse than a PSD, but that's okay because maintenance is only a fraction of the fuel costs; additionally, I found on this car and PSD's you can save quite a bit of money doing your work. For some reason though, gas engines that use cheap oil, it is only a tiny bit more to go somewhere and have it done...

anyway, back on topic... My problem was that the $200 a year I would have saved in fuel with a PSD would not have come close to paying for the diesel. So I would have paid about $1200 more a year in payments to save $200 in fuel. In your case you are close to a wash for the cost of the PSD and the fuel saved; which is excellent because when you sell the truck, you'll get more for it. So the engine will have paid for itself in fuel and you'll make money when it comes time sell it. In your scenario the PSD makes since and I would have done the same.

 

I am on my phone so I can't run the numbers, but if we were to assume 50% towing miles at 12mpg and 8 mpg, how does that change the scenario?

 

Towing what? The only time my V10 truck gets 8 mpg is towing the travel trailer into a headwind. Most all other towing is 10-11 mpg.
JL

 

How much are you towing and at what speed?

 

Towing will always favor the PSD for mileage.

But just for fun, assuming you do 30,000 miles (because that evenly divides it into 15k miles each) where half is empty at say 18 and 14 and towing at say 12 and 8, you would spend $7631 in the V10 and $6020 in the PSD, so you would save about $1600 a year in fuel costs.

That assumes 2.89 for diesel and 2.59 for 87 octane gas.

Again, if you are a heavy tower, the PSD will almost always be in your favor for fuel savings. There are other concerns that can come up, but for fuel you will save.

 

My truck sat around 9 towing the 12k lb horse trailer on relatively flat interstate and 6 mpg in the mountains. For comparison, my friend with the 6.4 got 9 mpg traveling about the save path I did with my trailer, his camper/trailer weighing in around 11,000lbs loaded and both of us going around 70 the entire time through the mountains.

 

Yeah, I was comparing my father in-laws old v10, he would get about 8 keeping it around 60 through Montana, so all over 3k in elevation, a lot of it over 5k and a few mountain passes. Same trailer with my 6.0 would get about 12 at that speed. Though I am impatient and go 70-75 and get 9 mpg. My 6.0 Chevy gas engine would get 8 at 60 and 5-6 at 70-75 so I would imagine the v10 would not be that far off in that scenario.

 

I tow at 65mph. The tires on my trailers are ST rated, so they're only good for 65mph MAX.No need in having a blowout because I'm driving the tires at speeds they're not rated for. The travel trailer is a 2008 Jayco Eagle 314BHDS. It's 33' 10" long, 11' 2" tall, 8' wide, GVWR is 9500 lbs, and it is loaded for travel at approx 8900 lbs.
Pics of the trailer and my modifications to it are here:
http://members.tccoa.com/jlangton/Eagle/
It's like towing a parachute down the road. The absolute worst mileage it has ever got towing that trailer was on the return trip from Arkansas a couple of summers ago. We were coming back for the entire 300 miles into a 25-30mph headwind, and it got 7.2 on that run.
When towing my car trailer with the Tbird on it, that's approx 6000 lbs, but has nowhere near the wind drag, and it gets 10-11 towing that.
JL.

 

That is my whole problem with reading fuel mileage numbers with towing pounds on the internet. First, most people exaggerate the load. Then my toy hauler which is about 10k loaded, is like dragging a brick wall down the road, it really kills the mpg and makes towing harder with the surface area of the face. On top of that my elevation and mountain passes, v10 and other gas guys laugh at my 9 mpg and say their engine gets 10 (n the flat land at 65). LOL I would be if a v10 were to hook up to my toy hauler and drive my route at 70-75 they would only get 6-7.

 

What kind of RPMs does it cruise at and pull mild hills at with that load?

 

I know whatcha mean. I didn't know about the cost of up keep before I bought my truck. I'm not sure it would have changed my mind. I've ran the numbers every way you can to see if it pans out in the long run, b ut it never does. My brother in law has. 7.3l and he changes his on 10k miles. It still cost a couple $$ more. At very best it breaks even.

 

It pulls on flat ground and mild hills in OD as long as there's not a big headwind (like that trip back from Arkansas), and that's right at 2000 rpms at 65mph. It will downshift on some hills, but that's what a N/A gas engine will do.
JL

 

I have a good friend with a 2001 7.3L 4WD Excursion with the stock 3.73's. He has a travel trailer that's very close to mine in length and design. His is aluminum skin with a single slide, mine is 'glass skin with 2 slides. They are the same profile (height and width) going down the road, but his is actually about 1000 lbs lighter. We both made the same trip last summer to South Padre Island. Both were travelling 60-65 mph, both going the same route, both going the same time of year. He got just over 10 mpg towing the trailer with his 7.3L. I got 8.5 that trip.
JL