RV.Net Open Roads Forum: Opinions on v10 and 8.1 vs 5.4 and 6.0 for towing 5ver.

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Open Roads Forum  >  Tow Vehicles

 > Opinions on v10 and 8.1 vs 5.4 and 6.0 for towing 5ver.

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danojeno

Corona, CA

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Posted: 08/22/12 08:53am Link  |  Print  |  Notify Moderator

With a 30' 5er, I'd say you're going to have to scratch the 5.4 and the 6.0. That vintage 6.0 just doesn't have what it takes to frequently pull that stuff. That leads you to feeding the barons. I tow a 12k fiver and get between 5 and 7 mpg. Unloaded trailer at 9k it aint any better. Mixed city / highway not towing is about 10ish. 8.1s are out there, you just may have to travel a bit.


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zogg

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Posted: 08/22/12 09:02am Link  |  Print  |  Notify Moderator

In 2005 we bought our first 5th wheel...9500 pounds. My son talked me into a diesel, which I kept for a year and sold it...hated the diesel, though many guys love them.

I ordered a new V10 with a 6 speed manual and loved it. Towed as good as the diesel without the hassle....got 9-11 mpg towing and 16 mpg hiway....generally 12-14 around town, but I drive easy.

Two years later, my left hip went bad (no more shifting) so I traded for a Chevy 3/4 with the 6.0....what a dismal disappointment. Truck struggled all the time when towing and mph was as bad as the v10.

For a daily driver, the v10 is ok, but not great on gas. The 6.0 is not any better. Towing there is no comparison....I would only buy a V10 to tow heavy.


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transamz9

Lawrenceburg Ky

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Posted: 08/22/12 09:06am Link  |  Print  |  Notify Moderator

sc3283 wrote:

V-10 or 8.1

you really can't achieve both....great towing power...then high MPG for a daily driver

you will HATE attempting to tow with an under powered tow vehicle & many small engines when towing will get less MPG than the larger more capable...because your working the snot out of them while towing...where the big engine is just cruising comfortably


I do, but we won't go there because that wasn't the question.


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ExxWhy

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Posted: 08/22/12 09:10am Link  |  Print  |  Notify Moderator

Depending on how much daily driving you do, it quite possibly would pay off to get a little econobox beater car to drive to work and use the truck as a TV primarily. Even the smaller engines aren't going to do too well in city driving with a truck. Towing, I don't think you will see much difference in MPG, may as well have the power.





SledHedEd

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Posted: 08/22/12 09:31am Link  |  Print  |  Notify Moderator

Well, I have had quite a few pickups and have towed travel trailers for years. I am very familiar with poor mileage with a truck over an econobox however I am not going to put another car on the road to save fuel on the truck. Looks like most opinions is to skip the small v8 and check out v10's and 8.1's. The weight of the 5ver will be around 10k loaded. Maybe I should be asking opinions on the Ford v10 compared to the 8.1 GM in that vintage. I DO appreciate all your input so far.


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LimogesMan

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Posted: 08/22/12 09:38am Link  |  Print  |  Notify Moderator

As many said, the Vortec 8.1L V8 or the Triton V10 in a 1 ton truck.
Check for a 4.10 or 4.30 axle ratio.
Long box usually gives you a bigger gas tank.

Good luck


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fla-gypsy

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Posted: 08/22/12 10:28am Link  |  Print  |  Notify Moderator

The 8.1L GM and 6.8L Ford have virtually the same specs and will give the same MPG performance. All other gas engines in those MY's are not suitable.


This member is not responsible for opinions that are inaccurate due to faulty information provided by the original poster. Use them at your own discretion.

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Engineer9860

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Posted: 08/22/12 10:30am Link  |  Print  |  Notify Moderator

In the 2000~2004 model years the torque king will be the 8.1L. Ford added the 3V heads to the V-10 in 2005 and that is when it got it's torque bump that puts it up to the 8.1L.

One other thing to consider is the transmission. The 8.1L came with the Allison. The 2000~2004 V-10 only came with a 4 speed auto. The V-10 didn't get the 5 speed auto until 2005.

The 8.1L/Allison will be available with either 3.73, or 4.10s. The 8.1L/3.73 has a 5er tow rating of 14,000# IIRC. The 8.1L/4.10 combination has a 5er tow rating of almost 16,000#.

If you are considering the V-10 you may want to look at the 2005+. If you are looking at the 8.1L then any year will do.


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transamz9

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Posted: 08/22/12 10:45am Link  |  Print  |  Notify Moderator

Great post engineer! Very good info.

lazydays

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Posted: 08/22/12 10:47am Link  |  Print  |  Notify Moderator

Don't forget about the Dodge v10. They were available through 2003. I believe mine was 305 hp 440 tq. Gas milege wasn't great but was a very reliable truck. My brother had the 8.1 Chevy during the same time and it was a great vehicle also. His would pull a little bit better.


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