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Report: 1st Road Trip With Boat.

VMax2007

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VMax2007 Senior Enthusiast

VMax2007

Posted
Posted

Well, in case you haven't noticed, I haven't posted here in a week. I was on vacation. Not a long roadtrip, but a roadtrip nonetheless. Here is my MPG report:

 

340 miles round trip

28 gallons of 91 octane gas = 12.1 MPG

90% freeway.

Boat and gear: approx 3500 lbs

4 people and cargo, approx 1000 lbs.

 

I was surprised/impressed since I usually only get about 10 MPG while towing my boat around town and on country highways with hills and stop signs. I am thinking the 91/92 octane helped some since I usually run 87.

tobias Senior Enthusiast

tobias

Posted
Posted
Well, in case you haven't noticed, I haven't posted here in a week. I was on vacation. Not a long roadtrip, but a roadtrip nonetheless. Here is my MPG report:

 

340 miles round trip

28 gallons of 91 octane gas = 12.1 MPG

90% freeway.

Boat and gear: approx 3500 lbs

4 people and cargo, approx 1000 lbs.

 

I was surprised/impressed since I usually only get about 10 MPG while towing my boat around town and on country highways with hills and stop signs. I am thinking the 91/92 octane helped some since I usually run 87.

 

Now that you mention it, it was a good week around here! :driving::flag::thumbs:

 

Kidding. That's pretty impressive. I towed a pontoon (I'd guess around about 2400 - 2600 lbs loaded down) plus the woman and the two mutts and our stuff last weekend about 150 miles each way and averaged about 9.6 MPG. I suspect it would have been better were I not running 75 most of the way and with a boat that acted a little less like a parachute but I was still okay with the numbers overall. I forgot to menion that I am in central Indiana and while we don't have any mountains we have many many undulating hills.

 

Glad to have you back.

 

Daddy

scottmoyer Enthusiast

scottmoyer

Posted
Posted

Why is the mileage so low on the 6.0? I have a 5.3 4x4 with 3.42s and when I towed my Camaro (3550#) on a trailer weighing 1990#, I averaged over 14mpg at 75. I drove through south Georgia going to Atlanta with their rolling hills and all. A friend with a 6.0 also went and his mileage was around 9-10mpg. Why is the 6.0 so bad with gas when loaded?

solarjustin Enthusiast

solarjustin

Posted
Posted
Why is the mileage so low on the 6.0? I have a 5.3 4x4 with 3.42s and when I towed my Camaro (3550#) on a trailer weighing 1990#, I averaged over 14mpg at 75. I drove through south Georgia going to Atlanta with their rolling hills and all. A friend with a 6.0 also went and his mileage was around 9-10mpg. Why is the 6.0 so bad with gas when loaded?

 

Because it is a gas motor. If you want good mailage while towing you are going to have to go with a diesel. As soon as I have $45K to spend that is what I'm going to do

spartus Enthusiast

spartus

Posted
Posted
I averaged over 14mpg at 75.

 

You should be very happy, because this is not at all the norm for these trucks.

 

 

I used to get 14-16 mpg towing my 4340 lb car, 1980 lb trailer = 6,320lbs with my Duramax. My 2500 with the 6.0 would get 12 mpg towing the same load. My 2007 CC with 5.3 get 8 mpg.. Go figure. And the 2007 5.3 makes more power and the same torque as my 2000 6.0 did.

VMax2007 Senior Enthusiast

VMax2007

Posted
  • Author
Posted
Not bad at all. What speeds were you doing on the freeway?

 

 

65-70 Most of the time. Used C/C most of the time (about 80% of the miles).

 

Also, A/C was on the entire trip.

2004GMC1500CC Enthusiast

2004GMC1500CC

Posted
Posted
I averaged over 14mpg at 75.

 

You should be very happy, because this is not at all the norm for these trucks.

 

 

 

When towing my very heavy pop-up (queen and king bed, shower, toilet, kitchen, air, you name it) stuffed with gear, and my bed stuffed with gear, I average 18 with the cruise set 65-75.

cmoore74 Enthusiast

cmoore74

Posted
Posted

I have a boat of about the same weight and I average about 12 MPG at 65-70 MPH. Its Boston Whaler 180 Dauntless (very heavy boat for it's size: 2000 lb dry weight + ~600 lb motor + 300-400 lb gas + 600 lb trailer + gear).

 

I've noticed towing boats can give pretty bad mileage relative to other types of trailers. Maybe the drag at highway speeds is a lot higher.

 

What kind of boat?

VMax2007 Senior Enthusiast

VMax2007

Posted
  • Author
Posted
I have a boat of about the same weight and I average about 12 MPG at 65-70 MPH. Its Boston Whaler 180 Dauntless (very heavy boat for it's size: 2000 lb dry weight + ~600 lb motor + 300-400 lb gas + 600 lb trailer + gear).

 

I've noticed towing boats can give pretty bad mileage relative to other types of trailers. Maybe the drag at highway speeds is a lot higher.

 

What kind of boat?

 

Larson LXI190 with the EFI 4.3V6 - 225HP, 4 blade 22" pitch SSTL prop. Top speed: 58mph.

 

2634455_9_full.jpg

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