hydro

also don't forget that 03 diesel didn't have a DPF filter. Those years (pre 08) were the highest MPG trucks made. Nothing on the road can touch a pre DPF diesel in MPG's and towing MPG. As mentioned before apples to oranges. Your MPG towing that boat is pretty damn good in my book. Just curious, your wheels obviously aren't factory, are your tires a different size also? Any change in tire/wheel width and weight will murder your MPG.

prime81

Well it looks like your all over the weight of it empty, wouldn't hurt to have it weighed to get absolute numbers. Outside of that, just slow it down, that boat is big enough to put some wind drag back there.

Georgia FX4

Hey Renovatedspaces, I tried to return your PM but your inbox was full. Shoot me another PM when you have some space and I'll reply back.

engineermike

That weight seems low for that boat. I know some manufacturers state the hull weight, which 4000 seems more reasonable. I did a quick search and the lightest weights people are reporting are over 6500 lb on trailer for a newer 25' and over 10000 lb for a 30'.

gsxr1216

yep, 87 E10, i wish i could get real gas wihtout ethanol!!! one place around here sells it, but at a 50 cent per gallon premium....

275 55 20 tires, OEM size for the 20" rims, weight is within 2 lbs of stock wheels. interestingly enough i run duratracs 275 65 18 on stock 18" chrome clad wheels for winter tires and they weigh almost 15lbs more a piece then the tires on the truck now and i didnt notice any real increase in MPG once i swapped these tires on it in the spring???

the one thing i DO notice is that this truck seems to be VERY picky about temperature, the warmer it is the better the MPG. on my commute home on the expressway if its 30 degrees out its lucky to show 15mpg on the lcd display, if its 70+ outside like it has been the last week or two it will show about 20 mpg on my commute home expressway. today the temp tanked again, it was 36 outside, and my MPG was low on the readout again???

usually outboard boats are listed without motor since you can put whatever you want on them. mine is true weight as specs says here below.

This inboard/outboard sports runabout is 26.75 feet long and weighs 4000 (pounds dry). This weight does not account for passengers, fuel, or gear. The beam of this craft is 96 inches.

Killav-TT

I decided to run a before and after fuel mileage comparison and post the results. Before is no trailer, with about 600lbs of people and stuff. Below are two pictures from the before mileage.

I drove from Fort Worth to Waco, Tx this weekend and then drove around in Waco from Sat. to Sun. then drove back. I drove normal, not hyper-miler style but not lead footed either.

So in the first picture, I reset on the highway leaving town, and averaged about 76 MPH, and got 21.6 MPG. Not bad. I passed people and drove normal. I had a slight tailwind, but not much.

It is 100 miles there, and 100 back. The second picture is the combinded city/highway for the whole trip. I averaged about 52mph for the whole trip, and my mileage dropped to 20.3 over 250 miles. I had a slight headwind on the way back, and there were times where I was doing 80 for 10 mile stretches. I would say that I drove about 30 miles city driving, over the 250 mile trip. The rest was highway there, back, and around Waco.

What's interesting, is that if I would have slowed down a little on the way there, I would have easliy matched the EPA Hwy rating, if not improved upon it. The speed limit is 75 most of the way there.

I have the 3.55 axle, and the stock 265/60/18 michelin tires that are down to 4/32 tread depth.....the truck is completly stock except for tinted windows and an upgraded audo system.

The next time I go camping, I will reset and post the results......

JerryC

40 cents a gallon more here, ~$1 to go from E10 87 to 93 non-ethanol.

i have not tried non-ethanol in the Eco, but I did just fill up my mustang and it surely does like non-ethanol better.

engineermike

That's completely normal. Some decent testing has concluded your economy changes by about 5% (1mpg) for every 10 degrees ambient.

I'm no baja expert (mine is eliminator), but over on offshoreonly, consensus is that baja drastically understates the weight of their boats (by up to 2000 lb). Some of those guys have weighed boat and trailer and got some very high numbers.

AndrewM

See, 18.3 @ 68mph. 2011 Harley 6.2 AWD. 5Star 93 performance tune. Borla touring cat back.

prime81

I kind of wonder the samething with my targa v18 combo.... total package weight per tracker's documentation is 3500lbs. I'm willing to bet it's closer to 4000lbs dry probably near 5000lbs with full gas tank and equipment.