How is your XR on gas??

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mikecozza69
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How is your XR on gas??

Post by mikecozza69 » Sun Sep 06, 2009 12:30 am

As above...

I run 94 octane on mine normally... but at the minute my fuel gauge is not working, so im filling up between $30 $35 every 150 miles.

hows it yours??

hEaT
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Post by hEaT » Sun Sep 06, 2009 12:53 am

Between 16-20mpg. Mostly city driving, then occasional highway which results in autocross.
Joe
1985 Nimbus Grey XR
2017 Ford Focus RS

AMXSC
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Post by AMXSC » Sun Sep 06, 2009 2:34 am

I'm running about 30-32mpg with mostly highway miles.
1988 Merkur Xr4ti
1985 SVO Mustang
1985.5 SVO Mustang

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whitelx
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Post by whitelx » Sun Sep 06, 2009 2:57 am

no clue as my speedo/odometer is pretty far off.
1986 XR4Ti - 294rwhp/315ft-lbs
1992 Mustang 5.0 notch - 434rwhp/445ft-lbs
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xrattiracer
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Post by xrattiracer » Sun Sep 06, 2009 3:07 am

havent done any scientific testing on mine lately but i estimate it to be about 25 mpg. still kinda dialing in the a/f ratio for cruise condition.
86 Silver XR4Ti. 'squirted. 12.7@111
03 VW Golf tdi
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Ray
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Post by Ray » Sun Sep 06, 2009 8:00 am

Last time i actually checked, which was a while ago, i got 22mpg highway and about 18 city. Now the car gets about 5-6.
-Ray
1985 Ford F150 - Tow Missile
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anglin
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Post by anglin » Sun Sep 06, 2009 12:04 pm

Prepare for excessive data.

Okay, ready? My fill-ups for the last year or so:

Code: Select all

date		   miles	 gallons  mi/gal (mpg)
08/12/2008	247.8 	11.590	21.38
08/23/2008	182.9 	08.478	21.57
09/08/2008	234.1 	10.915	21.45
09/15/2008	280.6 	12.870	21.80
09/25/2008	201.4 	09.780	20.59
10/02/2008	158.2 	07.278	21.74
10/05/2008	087.3 	03.974	21.97
10/13/2008	101.2 	05.198	19.47
10/19/2008	104.8 	05.117	20.48
10/26/2008	107.8 	05.687	18.96
10/31/2008	120.8 	06.311	19.14
11/05/2008	185.5 	08.257	22.47
11/12/2008	170.9 	08.581	19.92
12/05/2008	205.2 	10.766	19.06
12/24/2008	202.0 	11.846	17.05
01/08/2009	244.9 	13.189	18.57
01/18/2009	204.8 	13.385	15.30
01/23/2009	220.6 	10.911	20.22
01/31/2009	220.1 	13.147	16.74
02/05/2009	230.0 	12.165	18.91
02/15/2009	209.1 	11.511	18.17
02/21/2009	180.6 	10.081	17.91
02/27/2009	216.5 	11.204	19.32
03/09/2009	192.0 	10.355	18.54
03/15/2009	196.7 	09.629	20.43
03/24/2009	212.4 	09.830	21.61
04/04/2009	253.8 	12.508	20.29
04/13/2009	222.4 	12.551	17.72
04/19/2009	236.2 	11.741	20.12
04/27/2009	227.4 	11.460	19.84
04/30/2009	152.8 	07.504	20.36
05/05/2009	243.1 	11.483	21.17
05/09/2009	221.7 	10.462	21.19
05/13/2009	235.6 	11.332	20.79
05/20/2009	198.9 	09.794	20.31
05/26/2009	178.3 	07.364	24.21
05/31/2009	205.3 	09.750	21.06
06/05/2009	232.5 	11.227	20.71
06/14/2009	213.0 	09.687	21.99
07/16/2009	227.4 	11.003	20.67
If there's an extra zero on the front of a number, that's just to align the columns properly.

Average gas consumption over that period of time is 19.97 miles per gallon. All of the data is based on mixed city and highway driving, with highway miles being about 60% of the distance and 33% of the time.

We had 4 or 5 ice storms last winter where I idled the car for a long period while scraping the windows. Here's the yearly trend.

Image

turboplz
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Post by turboplz » Sun Sep 06, 2009 6:02 pm

I average right about 20 mpg. I have a pretty heavy foot getting into wot through 2nd and into 3rd a few times a day. All mixed driving, city and outer city.
Jason

89 Xr4ti..."Bronze Turd"...long term project/current garage queen

2014 Focus ST

bw_krupp
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Post by bw_krupp » Sun Sep 06, 2009 6:25 pm

29 mpg city/36 mpg hwy. I'm a more lazy driver than most though, right foot doesn't see much action. Drive by the vacuum gauge and keep it right at 70 mph.

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Post by Teedyo » Sun Sep 06, 2009 7:06 pm

Last time I checked; I got 29.3 MPG @ 80 MPH with both windows down.

My funnest was 8 MPG when it was running perfect and still had the C3. Killed the auto and the rear tires. :twisted:
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Tim

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86XR4Ti5SPD
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Post by 86XR4Ti5SPD » Thu Sep 10, 2009 10:21 pm

bw_krupp wrote:29 mpg city/36 mpg hwy. I'm a more lazy driver than most though, right foot doesn't see much action. Drive by the vacuum gauge and keep it right at 70 mph.
BW, I'm taking three guesses on this one:
1. This post was supposed to be on the Ford Focus form.
2. You've done the hybrid retrofit on your XR.
3. Those magnets taped around the fuel line REALLY DO work!

Come on, dude...give it up.
Ed, Nashville
98 SVT Cobra, 1-owner 33K-mile convertible bought 8/15
86 5-spd, Solid Roof, sold 9/15 with 62K miles
03 SVTF #1965 of 3985, sold 9/15 with 68K miles
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blizboy
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Post by blizboy » Fri Sep 11, 2009 1:18 am

Got 22.5 today. If I hammer it relentlessly I get 16.
I can manage 24 on the interstate at steady cruise.
Best ever when I first got it in 1991 was 27.

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xrattiracer
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Post by xrattiracer » Fri Sep 11, 2009 2:13 am

well i actually checked the last tank and if my math is right (diff ratio doesnt match speedo gears) its just above 18 mpg. and this with alot of "I wonder how quickly i can bury the boost gauge needle AND the speedo needle?" ;)
86 Silver XR4Ti. 'squirted. 12.7@111
03 VW Golf tdi
05 Yamaha FZ6

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xr4man
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Post by xr4man » Fri Sep 11, 2009 8:27 am

last time i checked highway mileage it was 25mpg. that was with the stock ecu and no intercooler.

now with the la3 and intercooler and 18 psi boost, i get about 19 city driving. i haven't checked highway mileage yet though.
ian the re-animator

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DPDISXR4Ti
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Post by DPDISXR4Ti » Fri Sep 11, 2009 9:28 am

86XR4Ti5SPD wrote:
bw_krupp wrote:29 mpg city/36 mpg hwy. I'm a more lazy driver than most though, right foot doesn't see much action. Drive by the vacuum gauge and keep it right at 70 mph.
BW, I'm taking three guesses on this one:
1. This post was supposed to be on the Ford Focus form.
2. You've done the hybrid retrofit on your XR.
3. Those magnets taped around the fuel line REALLY DO work!
X2. In God we trust. All others need data.
Brad

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