Eco mode versus Normal mode on 900

[SportsterDoc]

After almost 800 miles of run-in with eco-mode I finally switched to normal, yesterday.
Most of that tank was in Eco mode and around town errands, resulting in 33 point something MPG.

Today was two top offs, heading to mountains and upon return.
The second top-off, after 78 miles, was 37 point something MPG...going from 2500 feet elevation to over 8500 and return. Filled at same station, to same level.

From Lee Canyon, back to highway 95 Durango exit, running 6500 RPMs.

I am not seeing/feeling any difference, although I am generally easy on the throttle until rolling up to about 20 MPH.

Overall MPG is 33.5.

Ambient was nice above 4000 feet. Light overcast made it really nice at all elevations above...perfect for long sleeve T.

Road to top of Kyle Canyon has reopened...saw one wild stallion.
Spring mountains visitor center is still closed.
Road to helipad at top of Lee Canyon has reopened.
Ski resort again open Fri-Sun.
Lee Meadows had several wild horses grazing.

[BLUEKNIGHT911]

You arn't using the scientific method .... you are really guessing .... start with a full tank & reset odo to zero ....drive X number of miles .... fill tank to where you did before ..... now divide the amount of gas into the miles driven .... that will tell you exactly how much your MPG is ..... this only works by using the same FILL level as previously..... I always fill until I can see the gas AT THE LIP of the opening ....Every time ....good luck ..... Mike .....PS, I have a 14RT and if the nozzle is fully inserted it always shuts down leaving 1.6 gallons of space in the Tank ..... quite amazing I think

[SportsterDoc]

Thanks, Mike, perhaps I could have been more clear

From post 1:

“Today was two top offs, heading to mountains and upon return.
The second top-off, after 78 miles, was 37 point something MPG...going from 2500 feet elevation to over 8500 and return. Filled at same station, to same level.”

To maximize fill, nozzle is inserted only enough to push in spring loaded flap on capless tank.
Pump is operated at minimum fill rate (stopped using Costco for Ryker, due to high flow).
Fill is to lip.

I reset trip A each fill.
Trip A was 78 miles
Fill to same level was 2.1 gallons
78/2.1=37.14

Overall of 33.5 MPG is per trip computer, for which I do not reset fuel stats.

The 33 point something on morning fill, before heading to mountains, was also trip A / gallons pumped.

Incidentally,
A. Fuel gauge does not register consumption until about 85 miles / 2.5 gallons used from full tank.
B. After ~85 miles, gauge is somewhat proportional.
C. Miles to empty does not recompute after filling.
D. Miles to empty recomputes after about 25 miles / 0.75 gallon consumed and then is close to accurate.

[shakin_jake]

If it makes you feel any better Doc, 33MPG is what I'm averaging w/my 2020 900cc Ryker Rally running @ sea level using 87 octane. Like you, I've seen better MPG, and an L of a lot worse. Approximately 1200 miles on the odometer so, it's broke in (motor) for all intent & purpose


Best,


Jake
Reddick Fla.
Ineptocracy (in-ep-toc-ra-cy)

A system of government where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers

[ARtraveler]

ECO vs. Non ECO: Many have played the game trying ECO. Most have done it on the F3 or the RT. Most results across the board will give you about 1 mpg more if you faithfully use ECO and shift when they suggest. The power band is also cut back a bit.

The general consensus is ECO not that helpful. I used mine on one tank of gas and have never done so again.

[SportsterDoc]

If it makes you feel any better Doc, 33MPG is what I'm averaging w/my 2020 900cc Ryker Rally running @ sea level using 87 octane...

More O2 at sea level is a plus, but backed off timing for 87 octane probably offsets more atmospheric oxygen.

For now, I am running 91 octane and will continue to do so until autumn or if I fill up where only 87 is available, such as Stovepipe Wells, Death Valley

[SportsterDoc]

ECO vs. Non ECO: Many have played the game trying ECO. Most have done it on the F3 or the RT. Most results across the board will give you about 1 mpg more if you faithfully use ECO and shift when they suggest. The power band is also cut back a bit.

The general consensus is ECO not that helpful. I used mine on one tank of gas and have never done so again.

With the CVT, there are no shift options. No doubt that the resulting higher cruising RPMs affect MPG.

I understood that throttle opening is delayed, perhaps restricted with Eco mode.

Wonder if traction control is also affected?

This morning, running errands (hardware store), I pulled out (right turn) into moderate traffic, waited until I was straightened out and over 20 MPH, then twisted WOT, rear broke loose moderately and fishtailed.

Was figuring on 10K to maybe 12K miles on rear tire...probably not.

Only got 7K on Bonneville (865cc) and rear was close to needing a new tire on the V7II (744cc) at 7K

CB1100 (1144cc) got over 10K, even with 0-60 in 3.3 seconds.

[ARtraveler]

With the CVT, there are no shift options. No doubt that the resulting higher cruising RPMs affect MPG.

I understood that throttle opening is delayed, perhaps restricted with Eco mode.

Wonder if traction control is also affected?

This morning, running errands (hardware store), I pulled out (right turn) into moderate traffic, waited until I was straightened out and over 20 MPH, then twisted WOT, rear broke loose moderately and fishtailed.

Was figuring on 10K to maybe 12K miles on rear tire...probably not.

Only got 7K on Bonneville (865cc) and rear was close to needing a new tire on the V7II at 7K

CB1100 got over 10K, even with 0-60 in 3.3 seconds.

I did not think about the CVT. That makes my information not good for this particular thread. It is good for the RT's and F3's though