Okay gas was 83.9 Supreme, and 78.9 regular Friday, well today they are 93.9 Supreme and 84.9 Regular(this all in litres). I don't have my car on the road yet, and I am scared to drive my six.

So....now that I am done bitching, hmmm...tech, whats the best octane boost I can put in my tank? Whats everyone seeing for milage in there six?

 

Man oh man. Time for you to move to BC. We are still 72.9 here for regular and its cheaper yet in the Fraser Valley.

BTW for all you American drivers, this is Canadian for a Liter of gas. 1US$=$1.51C and 3.875 Liters = 1 US gallon. You can do the math to convert. But it is expensive for those people in Eastern Canada.

 

Ha, it's $1.80+ here in northern WI and the UP of Michigan.

Thank goodness for 30 MPG!!

Dale

------------------
The Bird
1986 FireBird
2.8L MPFI
Gutted Cat, No muffler (Sweet Sound)
Was 700-R4 --> Now T5

 

i get 16mpG!!!!!!

 

I'll be riding my motorcycle!
I'll fill all four of my cars tanks and let them sit.

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

hehehe, leave it to me, as gas prices head over $2, I go out and buy abloody 350...

Billy, dude, check your O2 sensor or something, 16 isn't normal if you were running dual turbos!

-Reno

------------------
89 Formula

 

ok i get like 12-14 in my 2.8, is something wrong?

------------------
1987 Firebird
173 2.8L V6
Flowmaster Muffler
The rest stock.

 

I get like 8 - 12 mpg. But my car is dying so that might just be me. gas here in MA costs $1.80 for premium and $1.60 for reg. I have to put $10-$20 in the tank a day. This car is killing me. I need another job.

------------------
Dying 1984 Black 2.8L LC1 Camaro SC
mods: 160* thermostat, CAI, stock V8 2 1/2" dual exhaust, Bosch Platinum +4, 8mm Accel wires, GTS taillight blackouts, Cool Blue headlights

 

The low gas milage is not surprising.
Underpowered engine, short bursts/hops to get to the front of the line.
That's about right.
My combo is getting 15+. I have advantage of torque from the 3.4 mill
Unless I cruise steady and I get over 20
Can't do much about it unless yo ucan make the road straight and no red lights.
A vacuum manifold gauge will help, because you instantly see the effect of a heavy lead foot. ower vacuum equals decreased gas milage.

In California, we hava a new way to make gas prices go higher.
Blow up the refinery.
The refinery gets new equipment and they make more profit from higher gas prices.
Amazing how that happens

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

Gas Prices here in N/E Ohio are about $1.65/gal. for regular and $1.85/gal for premium. (except in my town prices are ten to 15 cents cheaper ) and I'm getting just a hair under 20mpg (around town) out of my 2.8/5spd combo.

------------------
'86 Camaro SC 2.8 V6, 5spd, T-Tops
Bone Stock, except for:

(Performance)
Flowmaster cat back exhaust

(Non-Performance)
Pioneer DEH-P4000 head unit
Pioneer 6X9 Tri-Ax speakers
Jensen 8" dual voice coil sub
Blacked out tail lights and side markers (VHT
Nightshades spray tint)

(Hopefully these lists will grow quickly)

I like to think of it as a empty canvas

3

 

i get normaly between 17-20 city and last week i got the best milage i ever had 25 MPG. Gas here is well over 2.00 bucks now =( i think i need to get me a electric scooter so i can go to work hey its transportation and would be cheap

 

jeez, you're not that far from me. aur prices are around $1.70 right now. so that's like a $22 fill-up. just be glad you don't drive a ford SUV.


------------------
Dan
1990 3.1L RS
80 Series Flowmaster
It's fast(er than a 3 cyl metro)

 

Were in cali are you from??? Im from Simi last week i saw 2.19 a gallon in moorpark. i swear something really needs to be done about the gas prices. I hate to see waht Europe pays i herd a while abck they paied i think it was 3 or 6 bucks a gallon.

 

I get 20-25mpg with my 350 TA...

How could you get 12-16mpg

------------------
1999 30th anniv. TransAm #877
** BESTS:60ft=1.935 1/4 ET=13.08 MPH=111.8 ** (Only 3.5K miles)
T-TOP,6M-Hurst,12cd, TCS
!EGR * !MAF Screen * ported and polished MAF * !silencer baffles * ! lid baffles * ported and polished TB * removed primary and secundary baffles * sealed ram-air * 9.4k timing-tricker * !CAGS * Mobil 1 * Lou's short stick * BMR panhard rod * BMR poly/poly LCAs * !DRL * Polished SLP resonator catback * 2 Ractive mufflers * 3x3 'fernco' mod * K&N * TB stop grind * Grotyohann headers * offroad Y-pipe* Power pedals * 19+ coats Zaino * WHITE gauges cluster * blue door TA badges * pontiac windshield decal * Polished momo shift **** * 4.5" brosal exhaust tips
Ordered:
Kenny Brown DD SFC
Polished: Calipers * Hood struts * Air tubes * Valve covers,Heat shields , etc.
Later:Cam + spring + pushrods swap + stage II heads
2000 Black Z-71 K1500 5.3l
ext.cab * !intake baffle * !MAF screen * !EGR mod

 

Does having no air box increase MPG?

 

ya because the car gets more air easyer thus it works less. Thats what i have been told.
I just walked 4 friggin miles to the store to get a drink i figure exercise is good for me i need to loose weight then i will get more iles per gallon and my car will be faster hehe=)

 

My TBI V-8 gets 22-26mpg city driving. You guys ever tune your cars? 8-12mpg? I got that out of my highly modified GTA 350.

And no, I don't drive like grandma, I drive average.

------------------
Member of the Jersey Fbody Crew(JFA)

1989 Camaro Convertible RS
dark silver w/black top
305tbi, auto, 2.73 posi
SLP exhaust, 16x8 black
Check out Phil's Rice Boy Page

 

I just payed $1.47 for 87.... damn... I'm about to go find a Mazda B-series Pickup truck with a 5spd so I can get about 30mpg...
(then, of course, slam it about an inch off the ground )

------------------
-------------------
-Steve-
--'87 Camaro LT --
Successful 2.8->3.4 swap...

 

Yeah, I pay around $1.80 for a gallon of 93-octane. I found a gas station that wanted $1.60, maybe I'll go there... So for $10, I'd get an extra gallon, eh? Subtract that from the miles I'd drive to out of my way....... ah, screw it.

------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Damn I wish that I good gas mileage out of my 2.8L. I always keep on top of maintenance on my Firebird & no matter what I get 15mpg in town. But on the highway I get about 24mpg.
I find this funny but my mom's K5 Blazer gets better gas mileage & she has the same stuff done to her vehicle like the chip, thermo, Flows, etc. I can't wait till I can get a truck.

------------------
- Mike Harvey -
1986 Firebird S/E <----------------FOR SALE

 

I have yet to put the chip back in my car. I took it out when I thought I was selling it. Am I putting it back in??? Noooo...87 is fine with me, thank you!! I took the coil out too originally...that will go back in. It does feel slower at higher RPM's, but that could be as much to do with the coil as it does the lack of the chip. I can't really spin my RR anymore either...but that has more to do with brand new Firehawk GTA's

As for mileage, I normally get about 21-22 combined with the RS. My first 3 tanks with the Z have averaged out to 18.5, with slightly more city driving.

Mulot30th,
From one anniversary driver to another, it isn't hard to see why the 4th gen V8s get as good as, or better, mileage. Technology has come a LONG way since the 2.8 MPFI's debuted in '85. Your LS1 is rated 18/27, my LT1 16/27. To compare, my 2.8 A4 RS is 19/27, and you have to rev it to 3k to get solid acceleration. My LT1 cruises around town around 2k or less when shifting!!

------------------
Jason E

'89 Camaro RS 2.8
A few mods....2.8 automatic with t-tops

'97 Z28 30th Anniversary
White with orange stripes (factory)
6 speed, t-tops

Long Live #3...