2003-04 Mach 1 Registry Owners Club

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-   -   Insane Gas Mileage (http://www.mach1registry.org/forums/showthread.php?t=116203)

JoshMac 09-10-2011 11:23 PM

Insane Gas Mileage
 
So I went to Kooks Headers today for a show, I filled up this morning at a Wilco Hess and reset the trip, Drove down obeyed the speed limit and was very easy on the car. Drove back and was the same 70-75mph, and only got on the car hard twice. So I pull into the same station, hit the trip and it says 100.9. Fill the car up, pump shuts off at 2.8xx gallons, so I hit it again and it shut off at 3.152 gal, so I figure its done. Well thats 32.01mpg:crazy:

I have bigs and littles on the car and know the speedo is off, so I mapquest and google the route I took, both show it to be roughly 52 miles each way. So I'm not off by far if any really. I've heard of high 28.x and 29.x but never seen 30+. Anybody else ever get mileage this "4 cylinderish(LOL)"?

Mikestang 09-10-2011 11:47 PM

Re: Insane Gas Mileage
 
one time i made it from carlise pa to waterford ny on a tank of gas
I think i was getting like 28 mpg

My back was really messed up i made 90% of the trip with the cruise control on i kinda used it like a hand control for the gas since that leg was really in alot of pain.

03BumbleBee 09-10-2011 11:51 PM

Re: Insane Gas Mileage
 
That is amazing, numbers don't lie!

4V FURY 09-11-2011 12:58 AM

Re: Insane Gas Mileage
 
I posted here recently the results of my trip to the Woodward Dream Cruise, 26.83 mpg on the highway @ 72-74 mph. This is from a car with 4.30s that'll crack easy 11's with a rear tire swap!

http://www.mach1registry.org/forums/...d.php?t=115702

frisko4one5 09-11-2011 01:07 AM

Re: Insane Gas Mileage
 
dam why cant i get that kinda gas mileage. maybe i should change my fuel filter and spark plugs lol.. has been quite a while lol.

03 OxfordMach1 09-11-2011 09:33 AM

Re: Insane Gas Mileage
 
That is pretty darn good. That is the same MPG that my wife gets in her Accord during mixed driving.

I average 20-22 in mine with mixed driving and 24-25 pure highway/interstate. Which I have always been happy with considering it is an automatic transmission.

03mach1 09-11-2011 10:03 AM

Re: Insane Gas Mileage
 
Typically get 27-29 mpg on most long trips, cruise, no A/C...even towing my little 4x6 trailer (yes, a trailer) on a couple trips, it got 24mpg.

shadowmaker 09-11-2011 10:05 AM

Re: Insane Gas Mileage
 
Quote:

Originally Posted by 03mach1 (Post 1421652)
Typically get 27-29 mpg on most long trips, cruise, no A/C...even towing my little 4x6 trailer (yes, a trailer) on a couple trips, it got 24mpg.

You would probably get the same with the AC on. They say, the air drag with the windows down is worse than running the AC.

I usually see 25-29 as well.

JoshMac 09-11-2011 10:23 AM

Re: Insane Gas Mileage
 
This was windows down the whole time, NO A/C and no Cruise Control. The car has the factory plugs, 474xx miles and had a fuel filter about 9000 miles ago. The car has a JLT, 3/8 spacer, Catt'd X, Catback, and the Shaker Air Diverter. It was hot too yesterday, around 90 in statesville. I'm still in awe of this mileage. I drive a beater buick for a DD and have tried and tried to get 30.0 , but can never get better than 29.8x no matter how I drive it.

the walrus 09-11-2011 03:34 PM

Re: Insane Gas Mileage
 
On a 600 mile trip I got 26 the first half going up and over a mountain range, and 28 the second half (flat Nevada desert, cruise set at 78mph). This was driving from Sacramento, CA to SLC, Utah.

Always get 24.5 when commuting.
Let my wife drive it around town for a week, got 18. lol

Justin

lstpierr 09-12-2011 12:57 PM

Re: Insane Gas Mileage
 
****, I'm lucky to get 22 in mine.

GA03MACH 09-12-2011 01:09 PM

Re: Insane Gas Mileage
 
I'm getting around 23-24 mpg mixed driving. But I'm doing around 300 miles a week.

Anybody have any experience with how a tuner will help/hurt mileage? I'm running cai, catted x, and sss cat back, and I'm looking at a Bama tuned SCT x3 from americanmuscle.com.

jayslx1 10-04-2011 05:55 PM

Re: Insane Gas Mileage
 
Best I've got so far is around 15 with mostly city driving. Just changed the factory plugs (62K) to NGK iridiums and fuel filter as well as synthetic trans fluid and running bama 93 race tune.

FWIW I've tried the performance tune but did not see a difference in mileage, only throttle response..........so don't get your hopes up!

shame302 10-04-2011 07:12 PM

Re: Insane Gas Mileage
 
My best average is 31.3 MPG

vertigyn 10-06-2011 04:29 PM

Re: Insane Gas Mileage
 
Quote:

Originally Posted by shame302 (Post 1428772)
My best average is 31.3 MPG

That's crazy - I don't think I've seen over 20 in several years in my Mach...granted, the KB doesn't help =)

blown03Mach1 10-06-2011 04:31 PM

Re: Insane Gas Mileage
 
My best city is 19 and hwy was 25. Both times were taking it easy.

Nekasrof 11-13-2011 02:45 PM

Re: Insane Gas Mileage
 
1 - 1.5mpg while hillclimbing.:bigeyes:

mach1metalhead 11-13-2011 03:26 PM

Re: Insane Gas Mileage
 
i'm busy trying to figure out where those black lines in the rear view mirror are coming from... what's gas milage?

Mustanger2 11-14-2011 09:09 AM

Re: Insane Gas Mileage
 
Yeah we hit 30.8 once & 28-29 several times mostly 25-26 on the freeway driving for fun not mpg ...I alway chuckle at the greenies that think we drive gas guzzlers...


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