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-   -   1000 km (621.37 mile) non-hybrid tank! (https://ecomodder.com/forum/showthread.php/1000-km-621-37-mile-non-hybrid-tank-16028.html)

SentraSE-R 02-07-2011 12:05 AM

1000 km (621.37 mile) non-hybrid tank!
 
I met my goal of a 1000 km (621.37 mile) tank in my Scion xB today. I only used 10.563 gallons to refill, for an average of 58.84 mpg, >210% of the xB's 28 mpg combined EPA estimate.
http://i268.photobucket.com/albums/j..._4153Small.jpg

euromodder 02-07-2011 04:44 AM

Nice job :thumbup:

skyl4rk 02-07-2011 06:35 AM

A Kilotank!

What techniques and mods?

SentraSE-R 02-07-2011 12:21 PM

Driving the whole tank with low speed P&G as much as possible, and driving later in the afternoon when temperatures were higher. Only mods are tires inflated to sidewall maximum, lower grill block, and a WAI that fails to improve performance in ABA testing. I leave it on, since I think it helps the car warm up in the Winter

bluejoey 02-07-2011 05:07 PM

Nice work! How much of that was city driving?

SentraSE-R 02-07-2011 06:34 PM

Maybe 10% city driving. Most of my driving is on country roads.

darcane 02-08-2011 02:42 AM

Quote:

Originally Posted by SentraSE-R (Post 218974)
I met my goal of a 1000 km (621.37 mile) tank in my Scion xB today. I only used 10.563 gallons to refill, for an average of 58.84 mpg, >210% of the xB's 28 mpg combined EPA estimate.

Good on you!

Twice the EPA combined rating seems an impossible task. I guess that just means I still have room to improve.

I should see how many miles I can get in a tank... should easily exceed 700 miles.

Mike
(worse mileage, MUCH bigger tank)

low&slow 02-08-2011 06:57 PM

Darrell, Way to go!!! This is an awesome achievement that reflects your hard work, discipline and determination. Your coaching and testing has helped me to improve my hypermiling a lot and I'm glad you have also benefited from your efforts.
Well done!
L&S ( Vic )

SentraSE-R 02-08-2011 10:21 PM

Thanks, everybody.

Vic, I'm managing some 72 mpg trips on my 10 mile test loop as the weather warms up. My main change for this tank was lowering my P&G speeds. I used to think an 8 second pulse & 16 second glide was normal. By lowering my delta, I now get 8 second pulses with 30-40 second glides.

I suspect I'll be able to top 80 mpg in the Summer driving to Costco, Wal-Mart, Home Depot, & the mall.

It was great to get some hypermilers together to exchange ideas. We'll have to do it again. I think we all benefited.

CigaR007 02-08-2011 10:28 PM

What's the fuel tank capacity on the xB ? 12 gallons ?

I wish I could manage to get 1000 km out of my toyota echo on a single tank.

Congrats !

SentraSE-R 02-08-2011 11:17 PM

Gas tank size is 11.9 gal. on my xB. The low fuel light comes on with about 2 gallons remaining.

99MAXIMA 02-09-2011 08:07 PM

Sentra,

Please explain what "lowering my delta" means in #9 post.

Can you be more specific with the bottom to top speeds you were using both before and after your pulse & glide change?

Also, do you remember the gas mileage data for your car before and after your car's mods?

Thank You,

Rod
Coastal North Carolina

SentraSE-R 02-10-2011 06:38 PM

On my 10 mile test loop, I get about 48 mpg driving it in cruise control at 35 mph, & up to 53 mpg @31 mph. If I P&G between 25 & 40 mph, I can raise my mpg to 60 mpg & still average ~30 mph. By lowering my delta to P&G between 15-30 mph, I've managed 72 mpg on the same route.

99MAXIMA 02-10-2011 08:47 PM

Thank you for that info...and congrats...that is awesome mileage man.


Rod
Coastal North Carolina

aggie sig 02-11-2011 09:14 AM

Quote:

Originally Posted by SentraSE-R (Post 218974)
I met my goal of a 1000 km (621.37 mile) tank in my Scion xB today. I only used 10.563 gallons to refill, for an average of 58.84 mpg, >210% of the xB's 28 mpg combined EPA estimate.
http://i268.photobucket.com/albums/j..._4153Small.jpg

Awesome...

I'm thinking about doing a grill block and some other mods like you have. I'm driving 99% on the freeway so the aerodynamics would really help me out.

dommorsp 03-02-2011 08:43 AM

Wow that would be great.:thumbup:

BHarvey 03-02-2011 09:02 AM

Funny when I first saw your miles I was thinking it was nothing because I got 645.8 on a tank, but then I saw you used 10 gallons vs my 16......
and it deflated me a bit.

bdesj 03-08-2011 08:25 AM

Sentra, that`s amazing! I don`t know what your test loop is like, but your notes mention a lot of Nevada trips. That sounds to me like a lot of Interstate 80 with a 7000 pass in the middle! Do you P&G down into the 30s even on the interstate? Do you P&G on the climbs? I also see from the notes on your log that you`re all over the west, so probably a lot of other challenges to face too. Out of curiosity, what has you running all over like that?

SentraSE-R 03-08-2011 11:36 AM

bdesj,

I'm an astronomy volunteer in various western National Parks, & my daughter's family lives in ABQ, so I cross the Sierras on I-80 a fair amount. I just set the cruise control to 55 mph on the climb in either direction. On the downhills, I'll DFCO where necessary to keep my downhill speed speeds <70 mph, otherwise I'm coasting in neutral.

Once I pass through your neck of the woods, I leave I-80 at Fernley and take US 50, the loneliest highway in America, where I can P&G between 45 and 60 mph safely, since I'll only get passed by 10-20 cars during the entire day.

My test loop is a sea level country road with a few hills. It's about 10 miles round-trip, with a stop/turnaround at each end. I'll be happy to show you how I do it if you're ever in the Bay Area, or v.v.

bdesj 03-09-2011 05:42 AM

Thanks, Sentra. Most of my family is gone from there now (I`m originally from the peninsula), so I don`t get that way often any more, but I`ll drop you a line if I ever do find myself around there with extra time on my hands. Okay, so the low speed P&G isn`t what you do on the highway.

It also surprises me that you run at 55 over the passes (I know that 50 has some pretty high ones too) and still don`t kill your FE. I guess you`ve already considered it, or maybe even tried, but to get to GBNP I`d be tempted to take the interstate all the way across and then cut down. It`s flatter and even with more traffic it has two lanes each way, so people could get around. I suppose the extra miles are the down side though. Any rate, from your numbers, you obviously have a good system going. Very impressive all in all!

SentraSE-R 03-09-2011 10:18 AM

High speed driving clobbers your mpg, so I avoid Interstates as much as I can. I-80 is a necessary evil, because the alternate routes are 2 lane roads where I slow everybody down.

When I went for my 1000 km tank, there was very little highway travel involved - maybe 1 or 2 errand trips across the bridge. I typically get low-mid 40 mpg on highway trips. The rest was bread & butter (55-70 mpg) country road trips to Home Depot, the mall, Costco, Wal-Mart, etc. which balance off the short bad mpg (35-45 mpg) trips to places like the doctor and pharmacy. Needless to say, I walk to the bank, grocery store, veterinarian, barber, and post office.


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