Fuelly Forum: Fuel Talk

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Low Rolling Resistance tyres

Tyres - Low Rolling Resistance. Anyone have any data on the latest L.R.R. tyres? I need a set (for Punto 165/70 R14)and am considering the Eco Contact 3 (Continental). What sort of % fuel saving do they give? I am interested in economy as the number one factor for choice.
posted by nigelcut at 9:50 AM PST May 21 - 7 comments

Time in Vehicle?

Would it be possible to get Time Spent in Vehicle? Based on average speed?

It would be intersting.
100 Miles at Avg 60 mph --> 1.67 Hrs
posted by Dewey2hot at 8:46 AM PST April 28 - 4 comments

MPG Data Not Adding Up

Was looking at Scion iQ fuel data. Its around 35MPG for Scion and lower 40's for Toyota. How can this be? I assume the Toyo's are in Europe/Japan. Is the conversion not working out right? If this is the case, what about vehicles like Ford Fiesta that are sold in North America and Europe under same name and brand? Would those average MPGs be skewed one way or the other?
posted by liniator at 11:18 AM PST April 24 - 16 comments

RAV4 MPG

MPG is built in to any given vehicle. The engineers at Toyota or wherever have designed your automobile to certain specs. Nothing you do will change it. i.e. cold air intakes, etc.

I do have one suggestion though that has worked for me:
Whenever you come up to a stoplight (that you know is going to be relatively long) shut off the engine. This works.

2009 RAV4 Limited V6 (mostly driving in the city)
21.2 avg MPG
22.5 last MPG
25.9 best MPG (vacation trip out west)
28,909 miles
137 fuel ups
posted by chucksunder at 7:38 AM PST April 22 - 12 comments

Hyundai Active Eco System

I recently got a 2012 Hyundai Elantra. It is equipped with the Active Eco System. Was curious if others use it? If so, do you use it all the time or only on certain drives? Also do you notice a difference in fuel economy with its use.
posted by DurhamRich at 4:25 PM PST April 18 - 4 comments

Bi-Fuel CNG Tracking?

Has anyone been doing any tracking on bi-fuel systems that run both gasoline and CNG?
I'm looking into doing some CNG conversions and was thinking about how I would try to track - accurately - the MPG / costs etc. If you have thoughts, would appreciate it. Thanks.
posted by pearlbluevtx at 9:38 AM PST April 14 - 0 comments

City vs. Highway definition

Are rural roads considered to be Highway? I get much different mileage on rural roads with speed limits between 35-50 mph compared to what I get on actual multi-lane highways with limits between 50-65 mph. It seems bizarre to classify them together. For example, rte. 110 is a rural road with one lane in each direction that has a stretch of 4-5 mi. without a single stop sign or light. Is that a highway or city street?
posted by reb01501 at 8:05 AM PST April 11 - 7 comments

118.8 MPG on bike

Just got 118.8 UK MPG (98.92 US MPG) on my motorbike. Best ever, normally get around 97-109 UK MPG. I have altered my commute to avoid lots of stop start, and concentrated on accelerating smoothly and gently.

It would be good to have MPG leader-boards so you can browse by MPG as well as by make and model to help inform when buying new vehicles.
posted by yorkshirepudding at 10:30 AM PST April 5 - 2 comments

Adding fill ups

I filled up this morning, so when will I need to add this morning fill up data, will it be now or when I next fill up?
posted by Jonseyt23 at 2:15 AM PST March 29 - 5 comments

Quest for 40 mpg

Almost...but not quite 40 [more inside]
posted by dz302 at 6:03 AM PST March 26 - 12 comments

Bad MPG during new car break-in period

Don't be discouraged by bad MPG on a brand new car. Keep driving it, be patient, and prepare to be surprised. [more inside]
posted by magnus919 at 9:33 AM PST March 25 - 7 comments

higher Octane = Better MPG

i averaged 2.9 more MPG using 93 R+M/2 octane vs 87 per a (2011) 1100 mile MPG compar-o. in addition,(2010) i got similar results from a 3000 mile 87, 89, 93 octane MPG compar-o. as per the higher the octane the better the MPG.
posted by JBW at 2:27 PM PST March 15 - 9 comments

How to estimate %City driving

How to estimate %City driving?

This is clearly an important factor in determining your vehicles fuel consumption, but it's pretty difficult to make quantitative estimates and without it comparisons are pretty meaningless.

My car's computer can tell the average speed since the last reset (i.e. re-fueling). And it's always suprisingly low! I use this to estimate the %City driving by assuming it to be a linear function of speed from 20km/h=100%City to 120km/h=100%Highway. [more inside]
posted by timhewison at 2:42 AM PST March 10 - 9 comments

Junk in the trunk

How much of a difference does 30 pounds of stuff in the back of a RAV4 make? [more inside]
posted by Ziv at 2:27 PM PST February 23 - 8 comments

Almost 100 MPG!

Fiat's advanced engine technology never fails to impress! [more inside]
posted by Draigflag at 1:20 PM PST February 17 - 10 comments

Kia Soul mileage is terrible

My 2012 Kia Soul is getting less than 17 mpg and it's supposed to average 26.9. I drive basically 10 miles to work round trip each day, but it's a lot of stop and go traffic. I'd expect to get a little less than average but not this much. Anyone else experiencing mileage this poor? Thanks.
posted by MissDee at 4:51 PM PST January 26 - 24 comments