Tow Vehicle Fuel Consumption - Page 2 - Fiberglass RV


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Old 03-27-2008, 02:41 PM   #15
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The Tundras smallest engine was the 3.4L six; the one I have. The old body Tacoma was available with the 4cyl. Your friend is undoubtedly exaggerating just a little about his mileage.
Hi Roger, I meant to type Tacoma with 2.7L engine not tundra, his 2wd, my bad, oops. So anyone out there towing with a a small engine Tacoma 2wd?
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Old 03-27-2008, 02:42 PM   #16
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Great suggestion about tire pressure. We constantly check tire pressure of both car and trailer.
Nancy
Hi Nancy, what sort of tire pressure do you run in your scamp tires?
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Old 03-27-2008, 02:52 PM   #17
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I'm on the other end of the food chain here.
Having just purchased our 2500 Dodge 6 speed automatic, 4x4 turbo charged Cummins diesel, long box, I guess we are at the other end too. Nice to see some mileage numbers. We haven't towed with it yet. Part of our reasoning for the big TV was the mileage while towing and the fact that we didn't want to go backwards up Wolf Creek pass as stated in another post.

Question Mike. The manual states that the first 500 miles of towing be at no more than 50 mph. I'm a manual reader and follower, so I will probable do this. Did you? It will remind me of the early 80's driving 55 on the Interstate hwys.
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Old 03-27-2008, 02:57 PM   #18
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Question Mike. The manual states that the first 500 miles of towing be at no more than 50 mph. I'm a manual reader and follower, so I will probable do this. Did you? It will remind me of the early 80's driving 55 on the Interstate hwys.
NO. My dealer told me to drive Ďtypicalí to the way we were going to use it, but donít tow for the first 500 miles. 65 mph Fwy, etc. So that is what we did.
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Old 03-27-2008, 03:10 PM   #19
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Hi Mike, I thought having a Diesel would save you tons on fuel costs? So I wonder what kinda mileage people with the huge big ass fifth wheels and big diesel pusher coaches get ?
Russ, I have read where people towing with large trucks pulling large FWs are getting 7.5 mpg to 10 mpg.

My Truck - The BAT (+/- 16.2 mpg, 32 gal capacity)

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A Real BAT (7.5 mpg to 10 mpg, 300 gal capacity)
I should mention, these Full Timers report traveling an average of only 8,000 miles per year.
This is a Canadian that goes to Florida for the winter.

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PS: Lori asked me if that is what I want now, The Truck.
I said NO, but it is a whole new world I know nothing about.
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Old 03-27-2008, 03:13 PM   #20
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About the milage on your Dodge diesel. My brother first bougt a Dodge V-8 Hemi as a TV for his RV (32 ft. stick built). After 3 months at 8-9 MPG (55 MPH) he took it back and got the very same truck with a diesel engine, I don't know which Model. His MPG went up to 13-14. He thinks that's pretty good.

When we towed together with his old truck he would stop for fuel twice for my once. At least now we can stop an fill up together.
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Old 03-27-2008, 03:17 PM   #21
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About the milage on your Dodge diesel. My brother first bougt a Dodge V-8 Hemi as a TV for his RV (32 ft. stick built). After 3 months at 8-9 MPG (55 MPH) he took it back and got the very same truck with a diesel engine, I don't know which Model. His MPG went up to 13-14. He thinks that's pretty good.
That sounds about right for the size of the trailer being pulled.
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Old 03-27-2008, 06:09 PM   #22
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Not to make any point but I also have a 35FT diesel pusher with a turbo 5.9 cummings and a 6 speed transmision. I get an average of between 11 and 12 MPG. When I pull a trailer with a 3.9 Dakota I average about 14 MPG.
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Old 03-27-2008, 07:47 PM   #23
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Has any one towed with a small engine Toyota Tacoma 2wd? Reason I ask is I have a friend that drives super fast (130 km/h) which is about 80 MPH towing a 13' boler and claims that it hardly affects his fuel economy. I'm skeptical of his claims but would love to know if there anyone out there with a Toyota tundra 2wd 2.4L engine and what they are getting.

Cheers Russ
For the last 2 1/2 years I have been towing with an 05 Tacoma, manual transmission, 2.7 L 4 cyl.. The worst mileage I ever experienced was a trip to Arizona with my 603 pond ATV in the back of the truck and towing my 13' Scamp. I averaged 19 mpg for the trip. I am one of those that drives with the flow of traffic.
With just my Scamp I average 21 mpg. I live in the Mts. so just usual driving I get about 24 or 25 mpg.
This was my 7th Toyota. I say was because I was by a Toyota dealership today and they had one 07 Tacoma left. I made them a stupid offer and they accepted so now I have a new truck with an automatic transmission instead of a manual to break in.

You can't beat a Toyota!
John
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Old 03-27-2008, 07:58 PM   #24
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With the big diesel pickups, I suspect that the rear end ratio has a LOT to do with mileage. A friend bought one a while back to tow a mid-sized trailer, but he's the kind of guy who likes to have a lot of tow capacity, so he got a low rear end and then was disappointed by his mileage.
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Old 03-27-2008, 09:15 PM   #25
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With the big diesel pickups, I suspect that the rear end ratio has a LOT to do with mileage. A friend bought one a while back to tow a mid-sized trailer, but he's the kind of guy who likes to have a lot of tow capacity, so he got a low rear end and then was disappointed by his mileage.
Yes, I also believe this to be true. The 4.10 axle ratio over the 3.73 in the Dodge will lower your mileage. In my opinion, the low rear end is certainly not needed pulling the fiberglass trailers.
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Old 03-27-2008, 09:41 PM   #26
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Has anyone tried using a higher octane fuel while towing. I have a Honda Ridgeline, and according to the Ridgeline forums, people have said that using a higher octane while towing will increase their mileage by 2 mpg. I haven't had the opportunity to try this myself yet (hopefully winter will end soon). Curious if this applies to other vehicles, or if this particular to the Honda VTEC engine. Oh, my Ridgeline gets anywhere from 12 to 17 mpg depending on speed.
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Old 03-27-2008, 11:53 PM   #27
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Russ,

Trailer tire pressure is a loaded question.

We have original tires on our 04. They now have about 25,000 miles on them. I can't check their size or brand for quite a while. I think we run around 33 in them, but it has been a long time for that memory.

Our 13 loaded weighs around 1500 lbs.

I do know that the door side needs air often. We carry one of those 12 v air things, plug it into the cig. lighter and pump the trailer tires often. (we go up and down mountains, and sometimes drive in 100 degrees during the day and hit 60's the next day).

Here is a quote from Joy A (has a 13 that weighs over 2,000) who travels a lot and changed her tires:

"I changed to a Tow Master 6 ply (B78 -13/6 ST ply rating C). They have now been on for 3 full years logging 20,906 miles. They aren't even showing any wear. The tread depth is 1/4" deep. I keep the tires filled to 45psi. I rotate the tires side to side and pack the wheels at the beginning of each year".

Joy has been to Alaska since then so we need an update from her. This post was back in 2005. Maybe she even has different tires now.

You could probably do a search on tire pressure to get more info. But, I think this is another personal opinion thing. We all drive with different tire brand and sizes, different weight trailers, and different driving speeds. Some of us have to put up with 10 hours of 100 degree weather. We try to adjust for the driving conditions.

Hope this helps you.

Nancy

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Old 03-28-2008, 02:17 PM   #28
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Has anyone tried using a higher octane fuel while towing. I have a Honda Ridgeline, and according to the Ridgeline forums, people have said that using a higher octane while towing will increase their mileage by 2 mpg. I haven't had the opportunity to try this myself yet (hopefully winter will end soon). Curious if this applies to other vehicles, or if this particular to the Honda VTEC engine. Oh, my Ridgeline gets anywhere from 12 to 17 mpg depending on speed.
Octane alone does not increase power; high octane fuel is associated with powerful engines, but the fuel only allows them to produce more power. Octane is the rating of fuel to NOT ignite under high compression until the spark plug fires; high compression engines need higher octane to function properly.

Notice that when in the mountains, when one would expect to need so-called "high octane" fuel for power, the octane ratings of the fuels are actually lower at the pump. That's because the compression ratios change with altitude....


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That said, modern engines are computer controlled and can change the timing of the spark to suit conditions. IF an engine has the compression and computer to take advantage of high-octane fuel, then it might run more effectively or efficiently with that fuel. If not, then the money for the premium fuel (It's called premium because it yields more profit ) has been wasted.

A 2 mpg improvement is worth checking out.
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