Low MPG - Honda Ridgeline Owners Club Forums
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post #1 of 24 (permalink) Old 08-09-2013, 11:52 AM Thread Starter
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Low MPG

Why is my Truck getting such low MPG compared to everyone else on this forum? I am one of the people that takes twice as long to accelerate at a stoplight and am always driving like I have tomato under my foot on the pedals... I am just wondering if anyone thinks something is wrong with my truck? What can I do to make this better?

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post #2 of 24 (permalink) Old 08-09-2013, 12:00 PM
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Re: Low MPG

Short trips = 14 MPG - If all I did was drive to Walmart (1.5 miles) I would only get 11 MPG. I also live in a small town where traffic is light.

When I was visiting my father in Raleigh, I barely got 13 MPG (too many red lights and long idle at red lights).

Most of my drives are at 45 to 55 mph which gives great MPG once the truck has warmed up.

2013 Honda CR-V Polished Metalic EX-L with Navi.

The 199 fill ups on my 2009 Ridgeline with 20.6 MPG and over 60,000 miles driven- I just had 8 wonderful years in the Ridgeline but the Electronics are too many generations behind.

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post #3 of 24 (permalink) Old 08-09-2013, 12:36 PM
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Re: Low MPG

Quote:
Originally Posted by SLatz18 View Post
Why is my Truck getting such low MPG compared to everyone else on this forum? I am one of the people that takes twice as long to accelerate at a stoplight and am always driving like I have tomato under my foot on the pedals... I am just wondering if anyone thinks something is wrong with my truck? What can I do to make this better?
Please describe your driving habits in detail. How far at a time, how many stops, is the engine warm, how fast, and so forth.
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post #4 of 24 (permalink) Old 08-09-2013, 01:44 PM
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Re: Low MPG

I would expect 12-14mpg local, and 18-22mpg on highway under normal driving conditions.
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post #5 of 24 (permalink) Old 08-23-2013, 10:32 AM
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Re: Low MPG

I drive the 2007 Ridgeline and around town, stop and go with the lights, I average about 12.5 mpg. On the highway, I set the cruise at about 76 mph and my average - provided there isn't a gale going on outside - is about 21 mpg. The crazy thing is on the highway anything less than 76 mph makes my mileage drop significantly - down to the 16-17 mpg range.
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post #6 of 24 (permalink) Old 08-23-2013, 10:38 AM
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Re: Low MPG

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Originally Posted by RidgeLI View Post
I would expect 12-14mpg local, and 18-22mpg on highway under normal driving conditions.
Same here!






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post #7 of 24 (permalink) Old 08-23-2013, 11:16 AM
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Re: Low MPG

Quote:
Originally Posted by SLatz18 View Post
Why is my Truck getting such low MPG compared to everyone else on this forum? I am one of the people that takes twice as long to accelerate at a stoplight and am always driving like I have tomato under my foot on the pedals... I am just wondering if anyone thinks something is wrong with my truck? What can I do to make this better?
+ 1 LarryR

I drove a Civic Hybrid for 2 and a half years. 48 to 53 mpg. Going to the Ridgeline was a tough choice... What the Civic thought me was to conserve and use the energy that you had already built up (speed), every time you brake you are loosing energy (and mpg), I drive under 2000 RPM as much as possible, get up to speed quickly (not too quickly but definitely not slowly) but get up to speed using around 2k rpm or a little more, maintain your momentum, ease off the gas and coast as much as possible (keeping the flow of traffic). Ease off just a touch on down grades and plan a head for hills (gain a touch of speed).

My one way work drive is 20 miles of 30 mph to 55 mph with 3 pretty good hills 4 traffic lights and 3 stop signs. If it were not for the hills I could have had the Civic consistently well over the 53 mpg. Right now the RL is at 22.1 mpg. And could be higher if not for those hills. I ease off before I creast a hill or knowl, kinda coast down the other side. I let off long before stop signs and lights (again coasting as much as possible). I will add that I drive differently depending on traffic conditions. Fortunately I drive to work early with little to no traffic and I can try to "hyper mile". Other times when I am in traffic I keep in the flow and sacrifice mpg for my own safety.
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post #8 of 24 (permalink) Old 08-23-2013, 12:05 PM
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Re: Low MPG

Quote:
Originally Posted by SLatz18 View Post
I am one of the people that takes twice as long to accelerate at a stoplight...
1. Gasoline engines are most efficient at wide-open throttle where they can breathe and aren't sucking against the restriction of a throttle blade, but...

2. The more power the engine generates, the more waste heat created from fluid shear.

3. The longer it takes to reach cruising speed, the longer the transmission takes the transmission to reach 5th gear. You want to be in as high a gear as possible.

Considering items 1-3, there is a "most efficient" balance point between acceleration times and fuel economy. You don't want to burn rubber, but you don't want to drive like you're on ice, either. The most efficient acceleration point is in the middle. The biggest waste of energy in a non-hybrid vehicle is use of the brakes. It doesn't matter how "hard" or "gentle" you are on the brakes since a light application over a long distance generates the same amount of waste heat as a heavier application over a shorter distance. You're convering the kinetic motion of the vehicle to waste heat with any brake application - this is simple physics.

The highest fuel economy will be obtained by:

1. Combining short trips into one long trip.
2. Using the brakes as little as possible.
3. Accelerating "normally" - not too slow and not too fast.
4. Never running the air conditioner.
5. Always keeping the windows up.
6. Turning as little as possible.
7. Minimizing electrical loads.
8. Eliminating all possible weight.
9. Using ethanol-free gasoline.
10. Avoiding headwinds and preferring tailwinds.
11. Drive only on smooth, flat roads to avoid downshifting.
12. Drive as slow as possible, but at least 45 MPH so the transmission can remain in 5th gear.

The more of these things you can do, the better your fuel economy will be. It is very possible (although very impractical and often unsafe) to achieve over 25+ MPG in a Ridgeline.

Former vehicles: '10 Ridgeline, '09 Civic, '09 Silverado, '99 B2500, '08 G35, '07 Ridgeline, '06 Accord, '96 Cougar, '73 F-100, '00 Cavalier, '93 Cougar, '84 Fiero, '99 Regal, '98 Neon, '96 Ranger, '95 Probe, '94 Escort, '92 Grand Am, '91 Tempo, '86 Escort, '69 Skylark

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post #9 of 24 (permalink) Old 08-23-2013, 12:19 PM
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Re: Low MPG

I've never seen anything lower than mid 14 on the meter, and that's not common. Mostly high 15s around town.
Then 21-23 on long trips. My fuelly average says it all. Most of my driving is local not highway.



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post #10 of 24 (permalink) Old 12-08-2013, 03:16 PM Thread Starter
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Re: Low MPG

Thanks guys but I have tried these and my MPG has not gotten much better. Should I try cleaning my spark plugs or something?

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