Mpg

[black roadster]

In his thread about plugwires ain cold weather, David Chrisford mentioned he gets 30+ MPG on his NB. I don't get anywhere near 30 MPG.

It got me to thinking what MPG does everyone else get? Were talking daily driving, not performance driving.

Answer these questions.

1. What is your average MPG?
2. Year of Miata?
3. Boosted ot Normally Aspirated?
4. Fuel used? Brand and type of gas
5. Type of driving? Mostly highway or mostly surface streets?
6. Style of driving? Efficent/Spirited/Aggressive

My date:

1. 25 MPG
2. 1995
3. NA
4. Cheapest available, no brand preferance / Regular unleaded
5. Mostly highway
6. Spirited

[Dave04]

1. 27-28 MPG
2. 2004
3. NA
4. super unleaded (91+ octane), no brand preference
5. mix of highway and stop-n-go.
6. Spirited

[tailchaser]

1. 25.6 MPG for the last 9000 miles includes autocross, track time
(Averaged 31 on our 4200 mile road trip this summer, though)
2. 2002
3. NA
4. QT/Costco in Dallas, Name brand, busy stations on the road. 89+ octane
5. 50% true highway
6. Spirited

[onething]

Answer these questions.

1. What is your average MPG?
2. Year of Miata?
3. Boosted ot Normally Aspirated?
4. Fuel used? Brand and type of gas
5. Type of driving? Mostly highway or mostly surface streets?
6. Style of driving? Efficent/Spirited/Aggressive

1. 10 to 33 mpg - TMS Roval to cruising
2. 2001
3. Normally Aspirated
4. Super from anywhere - try to buy name brand if possible - busy stations always
5. Freeway & surface street
6. Whatever my mood dictates

[Majik]

Answer these questions.

1. What is your average MPG?
2. Year of Miata?
3. Boosted ot Normally Aspirated?
4. Fuel used? Brand and type of gas
5. Type of driving? Mostly highway or mostly surface streets?
6. Style of driving? Efficent/Spirited/Aggressive

1: 26mpg*
2:99
3:NA
4:Mid grade. I try and use the same conoco, but am not loyal to a brand.
5:Mostly surface streets, about 3min of my 15min drive is on the highway.
6:Efficient with spirited mixed in.



*This is since I started a spread sheet two tanks ago. I have also been very aware of driving slow and not reving since then, because of gas prices. Before I would usually drive fairy spirited, but mainly over 70 to nearly 80 on the interstate. Now I dont go over 65. I also try not to rev over 3500rpm. I would guess my gas mileage before was around 24.

[blackzx3_13]

May not help much, but
1. 29.9 mpg on the last 4 tanks
2. 2003 ford focus
3. na
4. Whatevers cheap, 87 octane
5. half highway, half street
6. efficient/spirited

[Treibenschnell]

1. What is your average MPG?
2. Year of Miata?
3. Boosted ot Normally Aspirated?
4. Fuel used? Brand and type of gas
5. Type of driving? Mostly highway or mostly surface streets?
6. Style of driving? Efficent/Spirited/Aggressive

1. No clue.
2. 1991
3. NA
4. The Bargain Basement, El Cheapo Brando
5. Highway 75% / Surface streets 25%
6. Extremely aggressive.

[altiain]

In his thread about plugwires ain cold weather, David Chrisford mentioned he gets 30+ MPG on his NB. I don't get anywhere near 30 MPG.

It got me to thinking what MPG does everyone else get? Were talking daily driving, not performance driving.

Answer these questions.

1. What is your average MPG?
2. Year of Miata?
3. Boosted ot Normally Aspirated?
4. Fuel used? Brand and type of gas
5. Type of driving? Mostly highway or mostly surface streets?
6. Style of driving? Efficent/Spirited/Aggressive

1. 23mpg
2. '99
3. normally aspirated, close to stock
4. 87 octane regular unleaded. Typically from RaceTrac or Chevron, although I've been know to buy off brand gas to save a buck or two
5. 50/50 mix of 80mph freeway cruising and spirited surface street driving
6. spirited/aggressive

I've averaged about 23mpg on almost every tank of gas I've bought for the Miata over the last two years. Autocrossing, no autocrossing, towing the trailer, driving to school, delivering pizzas, top up , top down, a/c, no a/c, whatever.

Most - not all, I'm sure, but most - of people claiming to routinely get 30+mpg out of Miatas are either clueless, dishonest, incapable of performing simple arithmetic, or drive on the freeway at 40mph, based on what I know of how EPA highway mileage figures are derived. Just my humble opinion.

[sammm]

1. ~24
2. 1999
3. NA
4. Regular unleaded (usually RaceTrac or Diamond Shamrock)
5. Mostly street
6. Spirited

[Jiggerachi]

1. After changing the o2 sensor, I think im getting around 27, but im still on that tank of gas so I dont know for shure. Before I was getting 24. 20 at first, before I changed something I dont remember.
2. '94
3. NA
4. Mid Grade, usually at the local Kroger ($.10 off /gallon, with every $100 spent at Kroger)
5. City, mixed with long open streets.
6. Efficient/Spirited. Try to keep the acceleration slow, but usually speed in 5th.

Edit: If I air up my tires to 30psi I would probably get a little better mileage(car says 25psi, thats where their at)

[Majik]

I could add that my best mileage ever for a tank was 31. I was coming back through New Mexico. Cool weather top up windows down. Steady speed cruising.

[BAM!]

1. 30, now down to 28 MPG
2. 1990
3. NA
4. preminum #1shell v-power #2chevron
5. short trips, a few drags, and aggressive...
6. all styles, heel&toe, and econodriving when the tanks full and almost empty.

speaking of fuel, if i go anywhere else (which is rare) i try to get a a top tier fuel. my belief is, top tier fuels have the required cleaning additives mandated by the government. chevron has twice as much cleaning additives and vopwer has 5 times..... so that extra dollar i pay per tanks is liike getting one of those fuel system cleaner bottles put in.... plus i think i gives better mpgs anyways...

crap, my last tank (reciept in my pocket dropped to 27.25mpg. am i the only one watching it go down with the weather or is it just me???

[Kags1969]

1. 26.8 on the last tank
2. 2000
3. GT2554r Turbo
4. 93 Octane from any of the Majors
5. 50/50 hiway/street... driven like its stolen...

[TurboDuane]

1. Lately 22-25 MPG, I've been working on mixtures, I've been running rich.
2. 1997
3. Boosted Turbo FMII
4. 93 Octane, usually Murphy, not real picky on brand
5. Mixed highway and city.
6. Spriteted driving

[Radio-Active]

1. What is your average MPG? 25.6 worst 30.8 best but Generally 28.6 mpg Factory claims 20 city and 26 highway on my model(MSM). 23 city and 28 highway on normally aspirated models.
2. Year of Miata? 2005
3. Boosted ot Normally Aspirated? Mazdaspeed Turbo
4. Fuel used? Brand and type of gas 93 octane
5. Type of driving? Mostly highway or mostly surface streets? Hi-way = 75%, city = 25%
6. Style of driving? Spirited
7. Milage on Vehicle? 5,000

Mazda recommends premium unleaded 91 octane or better on both normally aspirated and the Mazdaspeed models for the 2005 years.

Mom's Miata was a 1991 and averaged 32 MPG with the 5 speed driving ecconomical and wih regular unleaded.

[Kiliwizz]

1: 25, I think (around 280 - 300 miles per tank)
2: 96
3: NA
4: 93 octane, shell/chevron if available
5: daily commute and 25 mile trips to church
6: efficient / spirited at times

mpg is hit hard by using a/c; timing must be good; tire pressures up = better mpg + less comfort; cold intake improved mpg; it's a lot better than the blazer (~16-18mpg!)

[Titus]

1. 25 when commuting, as low as 14 when terrorizing local roads.
2. 1992
3. JRSC, 7 pounds of TDR intercooled Boost
4. always 93 octane, avoiding the generic brands
5. 70 % highway, 30% surface streets
6. Efficient when commuting, aggressive the rest of the time

[Darron65]

1. What is your average MPG? 28-30
2. Year of Miata? 1999
3. Boosted or Normally Aspirated? NA
4. Fuel used? Regular and I'm not brand loyal
5. Type of driving? 50-50 highway and surface streets
6. Style of driving? Efficient (Cheap Bastard)

It's been difficult to measure fuel consumption at AX's since the distance is so short. I noticed I used nearly a whole tank at the Maverick driving schools where I drove about 100 miles.

[Kestrel]

1. What is your average MPG?
2. Year of Miata?
3. Boosted ot Normally Aspirated?
4. Fuel used? Brand and type of gas
5. Type of driving? Mostly highway or mostly surface streets?
6. Style of driving? Efficent/Spirited/Aggressive

1. 23-25mpg
2. 1999
3. NA
4. Mid Grade
5. A little street, more highway (getting to an autocross) and some autocrossing
6. Efficient on the highway, spirited on the street, aggressive (at least, I HOPE it's aggressive) at an autocross.

I agree with altiain -- I have a very hard time believing any 30+ mpg claim in a Miata. How could anyone drive a Miata tentatively enough to get 30mpg out of one... and why would anyone want to drive a Miata that tentatively?

[rx7gslse]

1. What is your average MPG? 25.6 worst 30.8 best but Generally 28.6 mpg Factory claims 20 city and 26 highway on my model(MSM). 23 city and 28 highway on normally aspirated models.
2. Year of Miata? 2005
3. Boosted ot Normally Aspirated? Mazdaspeed Turbo
4. Fuel used? Brand and type of gas 93 octane
5. Type of driving? Mostly highway or mostly surface streets? Hi-way = 75%, city = 25%
6. Style of driving? Spirited
7. Milage on Vehicle? 5,000

Mazda recommends premium unleaded 91 octane or better on both normally aspirated and the Mazdaspeed models for the 2005 years.

Mom's Miata was a 1991 and averaged 32 MPG with the 5 speed driving ecconomical and wih regular unleaded.

Another MSM
1) avg ~24mpg, best of 31
2) 2004
3) Turbo, ~8psi
4) 93 Octane, Usually QT, but just b/c it's close & cheap
5) mix, 60HWY/40City.
6) Amused...
7) ~20,000

most driving is just normal zipping aroudn town.. not a lot of longer full boost runs, but there's a few thrown in...

FWIW, a day lapping hallet and I was down in teh 6-8mpg range. I blew thru a whole frikken tank in about 2/3rds of the day and had to fill up!