85.6 mpg - Fuel Economy, Hypermiling, EcoModding News and Forum

California98Civic · 06-10-2011, 10:22 PM

On one run where my previous best was 74mpg in warmer weather than today, I just got 85.6mpg after advancing my ignition timing 2-4 degrees. I posted a detailed "how to" in the DIY section of this forum. But wow! Now I wonder if it is working against my WAI. ??

Angmaar · 06-10-2011, 10:34 PM

Nice job! What hypermiling techniques do you use? What kind of commute was it? Highway or City.

War_Wagon · 06-10-2011, 10:36 PM

Good show!

California98Civic · 06-11-2011, 12:09 AM

Quote:

Originally Posted by Angmaar

Nice job! What hypermiling techniques do you use? What kind of commute was it? Highway or City.

It's all city, a route I chose for hypermiling when I realized I could greatly enhance MPG by hypermilin down the surface roads and keeping off the freeways. The route goes from about 300-400 feet above sea level to about 100 feet above sea level in about 10 miles. It's kinda down hill a lot. Going the opposite direction I generally get low 50s for MPG. For technique I do all kinds of stuff, but mainly EOC/P&G, which is how the PaleCivic seems to ride and get the top "team honda" billing most of the time. But I route plan, DWL, 1-3-5 shift, and bump start the car on hills when I start out on a trip.

piers.singer · 06-11-2011, 11:06 AM

Fantastic! Give yourself a pat on the back and keep up the good work.

SentraSE-R · 06-11-2011, 02:08 PM

Kudos! But round-trip averages tell the whole story. Otherwise, it's easy to rack up mpg numbers like this on downhills.

Arragonis · 06-11-2011, 02:47 PM

Yep - I can get 98.6 mpg (imp) in Mrs A's Octavia coming home as it is all downhill (we are nearer the coast than work is).

California98Civic · 06-11-2011, 03:52 PM

Quote:

Originally Posted by SentraSE-R

Kudos! But round-trip averages tell the whole story. Otherwise, it's easy to rack up mpg numbers like this on downhills.

Hahaha! Totally true. But what made this noteworthy to me was that for maybe two months I have 5 days a week to get the best possible return on this exact route. Once or twice I hit 74mpg in warm weather. Yesterday, a little colder and without terribly much effort, not more than usual, I got 85.6 mpg. Maybe I drove differently in ways I didn't notice, but an 11mpg gain seems to me LIKELY to be partly about the ignition timing, POSSIBLY. Anyway, it's just a fun report. BTW, I got 102.2mpg on a two mile strip that's flat until it ends in a downhill this morning. But I won't brag!

ghostwalker · 06-18-2011, 12:29 AM

What octane are you running? Did it seem like you had more power? It's a pretty common mustang trick to run 93 octane and set timing just below detonation. It increased HP and more significantly throttle response. Ya I know it's ecomodder but every once in a while I have to use the spurs on my ride. If it improves performance AND FE even better.-GW

SentraSE-R · 06-18-2011, 12:42 AM

Quote:

Originally Posted by California98Civic

Hahaha! Totally true. But what made this noteworthy to me was that for maybe two months I have 5 days a week to get the best possible return on this exact route. Once or twice I hit 74mpg in warm weather. Yesterday, a little colder and without terribly much effort, not more than usual, I got 85.6 mpg. Maybe I drove differently in ways I didn't notice, but an 11mpg gain seems to me LIKELY to be partly about the ignition timing, POSSIBLY. Anyway, it's just a fun report. BTW, I got 102.2mpg on a two mile strip that's flat until it ends in a downhill this morning. But I won't brag!

Once might be a fluke. Twice might be coincidence. Three times is a trend. Props for the 85.6 mpg.

Update?