View Full Version : 17.5 mpg
Bradley G
09-18-2006, 06:23 AM
All I gotta say is, besides trying to be conservative when I fill the tank.
I always tell myself;
"Wonder what kind of mileage, I would get if I refrained from boosting this car?"
Kinda like; "How many licks, does it take?"
I can't stop either! :banana: I love this Car!
SID210SA
09-18-2006, 11:04 AM
WOW....makes me rethink the whole supercharging thing...on my last tank I got almost 19 mpg. that is all city and alot of idleing and restarting the engine while making quick stops at the store and whatnot.
Hotrauder
09-18-2006, 05:52 PM
Brad, You are doing better than I am, I think. I really haven't checked cause I would walk 6 days a week just to be able to drive the FruitPunch on the 7th. Gas cost is a minor expense in the transformation of this car. I wouldn't change anything ..... except to make it faster...straight AND crooked. I haven't even begun to consider when to stop working at that yet. Dennis:D
Rider90
09-18-2006, 05:56 PM
17.5?? I think I'm around 12...
:burnout:
Bradley G
09-18-2006, 06:01 PM
I am sure it was a fluke, Dennis.
I'll try and get that number way down!
Gas is getting much less around here.
It's down nearly a dollar a gallon from two months ago.
I told my wife, this thing gets almost the same mileage, as the GMQ.
I'm not done making this thing go faster, either!
Brad, You are doing better than I am, I think. I really haven't checked cause I would walk 6 days a week just to be able to drive the FruitPunch on the 7th. Gas cost is a minor expense in the transformation of this car. I wouldn't change anything ..... except to make it faster...straight AND crooked. I haven't even begun to consider when to stop working at that yet. Dennis:D
Cheeseheadbob
09-18-2006, 06:08 PM
17.5? I don't think I got that before I spent thousands of dollars to make this thing go as fast as it does. I'm getting about 210 miles out of a tankfull. If I have to worry about how much the fuel costs, then I might as well drive a POS Hybrid. NEVER GOING TO HAPPEN. At least my MM gets better mileage than my truck!:D
KillJoy
09-18-2006, 06:11 PM
I get about 250 miles per fillup. Comes out to around 15 MPG. City driving, ideling, and LOTS of fun stop lights!!
KillJoy
PS - Sorry for posting here....I did not realize that this was in the Trilogy Forum. :D
usafsniper
09-18-2006, 06:20 PM
1) Because wind resistance increases dramatically with speed, every mile that you drive at a speed over 55 MPH, your fuel economy actually goes down by two percent. In other words, you'll get about half the mileage driving at 70 MPH compared to 50 MPH! That's why aerodynamics has become so important in the last 15 years, and why all of our cars now look like jelly beans.
2) Here's another rule of thumb, from the EPA: Every 5 MPH you drive over 60 MPH you're paying an additional $0.21 per gallon for gas.
3) The softer your tires are, the greater the friction between the road and the rubber, and the harder your engine will have to work to move the car. Under-inflated tires lowers gas mileage by 0.4 percent for every one pound of drop in pressure of all four tires. So, if you're down by 10 pounds... you're losing 4 percent in fuel economy.
4) When the seasons are changing, keep an even closer eye on your tire pressure. For every drop of 10° Fahrenheit in air temperature, your tires will lose one pound of pressure.
Hotrauder
09-18-2006, 06:22 PM
17.5? I don't think I got that before I spent thousands of dollars to make this thing go as fast as it does. I'm getting about 210 miles out of a tankfull. If I have to worry about how much the fuel costs, then I might as well drive a POS Hybrid. NEVER GOING TO HAPPEN. At least my MM gets better mileage than my truck!:D
Bob, looking at the numbers in your sig I have a long way to go. Go to go, time to get started. Dennis:)
Hotrauder
09-18-2006, 06:25 PM
1) Because wind resistance increases dramatically with speed, every mile that you drive at a speed over 55 MPH, your fuel economy actually goes down by two percent. In other words, you'll get about half the mileage driving at 70 MPH compared to 50 MPH! That's why aerodynamics has become so important in the last 15 years, and why all of our cars now look like jelly beans.
2) Here's another rule of thumb, from the EPA: Every 5 MPH you drive over 60 MPH you're paying an additional $0.21 per gallon for gas.
3) The softer your tires are, the greater the friction between the road and the rubber, and the harder your engine will have to work to move the car. Under-inflated tires lowers gas mileage by 0.4 percent for every one pound of drop in pressure of all four tires. So, if you're down by 10 pounds... you're losing 4 percent in fuel economy.
4) When the seasons are changing, keep an even closer eye on your tire pressure. For every drop of 10° Fahrenheit in air temperature, your tires will lose one pound of pressure.
Robert, you are way to close to the DMZ to be thinking of going slow. ;) Good luck and thank you for your service. Dennis
SergntMac
09-18-2006, 07:08 PM
The window sticker said "17 to 23" MPG.
Considering your mods, I'd say you're doing great...MPG-wise that is...
Glenn
09-18-2006, 07:40 PM
Run a consistent 18+ MPG with the Altanta Trilogy #1 & 4:10s with the vast majority of speed over 70 and a heavy foot, but with a great Lidio tune.
Glenn
usafsniper
09-18-2006, 08:05 PM
Robert, you are way to close to the DMZ to be thinking of going slow. ;) Good luck and thank you for your service. Dennis
You should see what we have to drive over here...this place is hybrid hell. Unless we are looking to break the armistice, we don't get our tactical vehicles...they stay in cold storage. Kinda like an MRE...wrapped and ready to use if needed. This is a daily driver for us...the BONGO! Made by...you guessed it...KIA...guess it's farmed out to Mazda too.
http://www.cartrading.co.jp/en/Truck/img_truck/t-2341f.jpg
duhtroll
09-18-2006, 08:43 PM
In actuality, there is a point where RPMs are optimal for every engine's fuel economy (individual to the engine itself relative to all the factors; weight of the vehicle it's in, resistance/inertia, etc.). Just as there is no appreciable penalty from wind resistance up to a certain point.
If the below were true, everyone should limit themselves to 55 MPH exactly to optimize fuel economy. Some report better mileage at 2100 RPMs
1) Because wind resistance increases dramatically with speed, every mile that you drive at a speed over 55 MPH, your fuel economy actually goes down by two percent. In other words, you'll get about half the mileage driving at 70 MPH compared to 50 MPH! That's why aerodynamics has become so important in the last 15 years, and why all of our cars now look like jelly beans.
DEFYANT
09-18-2006, 09:28 PM
I dunno... I got 22mpg (highway) on the trip home from Detroit... and we were movin ;)
usafsniper
09-18-2006, 09:28 PM
In actuality, there is a point where RPMs are optimal for every engine's fuel economy (individual to the engine itself relative to all the factors; weight of the vehicle it's in, resistance/inertia, etc.). Just as there is no appreciable penalty from wind resistance up to a certain point.
If the below were true, everyone should limit themselves to 55 MPH exactly to optimize fuel economy. Some report better mileage at 2100 RPMs
Good point...I'd imagine every car is different as well. I think that "formula" is a few years old...
Bradley G
09-19-2006, 04:59 AM
Sorry for the misinformation.
my actual mileage on the last tank of gas was;
268 miles on 16.069 gallons =16.67807577981206048914058124 33879 MPG.
Someone check my math!
This was all rural roads, several romps past a really big number.( I was gon'na be late, otherwise). Almost always, being first off the line.
Method; fill tank with 93 octane, till I can see the fuel comming through the opening.
Reset trip odometer and repeat refill procedure, record mileage.
I got my tires at 40+PSI and adding 2-3 ounces of acetone per ten gallons.
I don't let the car warm up, I don't exceed 2500 rpm, till the temp guage is into the normal operating range.
Did I say "I Love this car!" :D
SID210SA
09-19-2006, 05:32 AM
Sorry for the misinformation.
my actual mileage on the last tank of gas was;
268 miles on 16.069 gallons =16.67807577981206048914058124 33879 MPG.
Someone check my math!
This was all rural roads, several romps past a really big number.( I was gon'na be late, otherwise). Almost always, being first off the line.
Method; fill tank with 93 octane, till I can see the fuel comming through the opening.
Reset trip odometer and repeat refill procedure, record mileage.
I got my tires at 40+PSI and adding 2-3 ounces of acetone per ten gallons.
I don't let the car warm up, I don't exceed 2500 rpm, till the temp guage is into the normal operating range.
Did I say "I Love this car!" :D
Is this the stuff you speak of.....some can be pretty pricey....
http://www.bizrate.com/automotivecare/products__keyword--fuel%20additive.html
SergntMac
09-19-2006, 06:08 AM
I dunno... I got 22mpg (highway) on the trip home from Detroit... and we were movin ;)Not impossible at all, I've seen that and a few times better on both Marauders. but my overall highway average (a running sum) is closer to 20 MPG. Still not bad, considering...
Bradley G
09-20-2006, 05:56 PM
I'm just using 2-3 oz. Acetone per ten gallons.
Is this the stuff you speak of.....some can be pretty pricey....
http://www.bizrate.com/automotivecare/products__keyword--fuel%20additive.html
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