BETTER GAS MILEAGE
02-15-2007, 02:32 PM
#43
Join Date: Jan 2007
Posts: 12
RE: BETTER GAS MILEAGE
Find it hard to believe all you want, but that is what I get. I didn't buy my car for the gas mileage either. I drive my car like a normal person. I like to get on my car some, but I'm not the guy reving and doing burn outs every chance I get. Take into conciteration that Oklahoma city driving is diferent than Dallas driving. I'm rarely below 45 in town. I don't see how some of you are only getting 13mpg.
02-15-2007, 04:12 PM
#44
1st Gear Member
Join Date: Feb 2007
Location: Western NY
Posts: 105
RE: BETTER GAS MILEAGE
ORIGINAL: Rt1Rebel
I've been getting about 21-22 in all around driving. I drive my car very gently though. Here's a tip that I would think was very obvious, but I'm surprised that I'm really the only one I know that actually does it: When you see a light or a stop sign or slow traffic 100 or 75 yards ahead of you, take the foot off the gas and drift on into it. Saves your gas and your brakes. That sounds so simple, but I am amazed at the folks I ride with that continue to keep in the gas until they get right up on it and then slam on the brakes to make the stop (my wife included.)
I've been getting about 21-22 in all around driving. I drive my car very gently though. Here's a tip that I would think was very obvious, but I'm surprised that I'm really the only one I know that actually does it: When you see a light or a stop sign or slow traffic 100 or 75 yards ahead of you, take the foot off the gas and drift on into it. Saves your gas and your brakes. That sounds so simple, but I am amazed at the folks I ride with that continue to keep in the gas until they get right up on it and then slam on the brakes to make the stop (my wife included.)
And this is just funny!
[quote] My car is not permitted to testify against me - I assert the owner/car priviledge...
If they feel a need to collect such data, I am sure I will experience a failure of that collection mechanism
(officer, that large, high power oscilating EM field just flew out of the bushes - I tried to stop, but it was just too late...)
I am sure the insurance companies will then (or already have?) lobbied to make it a capital offense to do so[8D] [quote]
02-15-2007, 04:13 PM
#45
3rd Gear Member
Join Date: Nov 2006
Location: New Jersey
Posts: 983
RE: BETTER GAS MILEAGE
Set your rev limiter to 1200 r.p.m.
Go on a diet and lose 20 - 60 lbs (and drive buck nekked in the summer for added weight savings).
Unbolt your entire chassis, and then put it on a Prius.
Go on a diet and lose 20 - 60 lbs (and drive buck nekked in the summer for added weight savings).
Unbolt your entire chassis, and then put it on a Prius.
02-15-2007, 04:46 PM
#46
4th Gear Member
Join Date: Feb 2007
Location:
Posts: 1,885
RE: BETTER GAS MILEAGE
ORIGINAL: GT Newbie
Set your rev limiter to 1200 r.p.m.
Go on a diet and lose 20 - 60 lbs (and drive buck nekked in the summer for added weight savings).
Unbolt your entire chassis, and then put it on a Prius.
Set your rev limiter to 1200 r.p.m.
Go on a diet and lose 20 - 60 lbs (and drive buck nekked in the summer for added weight savings).
Unbolt your entire chassis, and then put it on a Prius.
oh my lordie
I almost fell off my chair
02-15-2007, 06:54 PM
#47
3rd Gear Member
Join Date: Jul 2006
Location: Chicago (South Loop)
Posts: 685
RE: BETTER GAS MILEAGE
ORIGINAL: sjyankovic
Interestingly, it is theoretically more fuel efficient to floor it when getting up to speed. The idea behind this is the fact that when the throttle is partway or mostly closed, the engine has to spend energy sucking air past the throttle plate. In addition, as the torque peak is where the engine is most efficient for power production, it is theoretically best to stay near that. Of course, this is more theoretical than anything. For example when applying heavy throttle, people tend to go over their intended speed, as well as the fact that under heavy throttle the ECU enriches the air-to-fuel ratio, thus reducing MPG. My point? no idea. try messing around with getting up to the speed limit with like 3/4 throttle and then popping on cruise control. even if it doesn't help any, the speed is why we have these things, and it seems like a waste not to use it.
Interestingly, it is theoretically more fuel efficient to floor it when getting up to speed. The idea behind this is the fact that when the throttle is partway or mostly closed, the engine has to spend energy sucking air past the throttle plate. In addition, as the torque peak is where the engine is most efficient for power production, it is theoretically best to stay near that. Of course, this is more theoretical than anything. For example when applying heavy throttle, people tend to go over their intended speed, as well as the fact that under heavy throttle the ECU enriches the air-to-fuel ratio, thus reducing MPG. My point? no idea. try messing around with getting up to the speed limit with like 3/4 throttle and then popping on cruise control. even if it doesn't help any, the speed is why we have these things, and it seems like a waste not to use it.
02-19-2007, 02:57 AM
#49
3rd Gear Member
Join Date: May 2006
Location:
Posts: 700
RE: BETTER GAS MILEAGE
I've been keeping careful track of my gas mileage with all of my modifications, since I did them one at a time. I have a 2006 GT with automatic. Here's what I discovered:
1) Stock driving about 60 mph I'd get about 25 or 26 mpg on the highway. 27 mpg was my best, but I really had to pay attention to my driving and do 55 mph. Highway for me is rolling hills and very small mountains. If you live in Kansas I'm sure you'll do better.
2) 93 octane tune with STOCK air intake. A canned 93 octane tune and the stock intake. Plus maybe 1 or 2 mpg.
3) Steeda CAI and 93 octane tune. Minus about 1 or 2 mpg. I was getting the stock gas mileage or maybe a little less. I recall getting about 24 or 25 mpg highway. (Same hilly terrain)
Which makes sense, too. If you add air to an engine, you have to add fuel. Otherwise, I'd be running lean, right?
4) Steeda CAI and 93 octane tune and AEM Dry Flow Filter. I hate the idea of oiling aftermarket filters and wanted to try the AEM. I ordered a 9 inch Dry Flow Filter.
I found it to be of excellent quality. However, 9 inches is too long for the Steeda CAI. It was actually rubbing the hood. The restriction caused throttle lag and increased my gas mileage. Plus about 1 mpg.
3) I removed the large dryflow filter with a smaller dryflow filter, this time 5 inches in length. Throttle response immediately returned. It feels a hair less responsive in the city with the smaller filter...I think. The difference is so minor that I may datalog to see if there is any difference between the Steeda filter and the smaller AEM. Gas mileage was practically the same as my CAI with the Steeda filter.
4) Gears. I had 3.73's installed. Gas mileage in the city or in hilly terrain with lower speeds (about 50 mph) has increased. Plus 1 or 2 mpg.
Highway mileage is down to about 23 to 24 mpg. That's doing about 65 mph in hilly terrain. Minus 1 or 2 mpg.
For me, the best mileage I got was a 93 octane tune and the stock intake or my crazy, oversized, restrictive air intake experiment. If you do almost all city driving, then I actually recommend getting gears, too.
1) Stock driving about 60 mph I'd get about 25 or 26 mpg on the highway. 27 mpg was my best, but I really had to pay attention to my driving and do 55 mph. Highway for me is rolling hills and very small mountains. If you live in Kansas I'm sure you'll do better.
2) 93 octane tune with STOCK air intake. A canned 93 octane tune and the stock intake. Plus maybe 1 or 2 mpg.
3) Steeda CAI and 93 octane tune. Minus about 1 or 2 mpg. I was getting the stock gas mileage or maybe a little less. I recall getting about 24 or 25 mpg highway. (Same hilly terrain)
Which makes sense, too. If you add air to an engine, you have to add fuel. Otherwise, I'd be running lean, right?
4) Steeda CAI and 93 octane tune and AEM Dry Flow Filter. I hate the idea of oiling aftermarket filters and wanted to try the AEM. I ordered a 9 inch Dry Flow Filter.
I found it to be of excellent quality. However, 9 inches is too long for the Steeda CAI. It was actually rubbing the hood. The restriction caused throttle lag and increased my gas mileage. Plus about 1 mpg.
3) I removed the large dryflow filter with a smaller dryflow filter, this time 5 inches in length. Throttle response immediately returned. It feels a hair less responsive in the city with the smaller filter...I think. The difference is so minor that I may datalog to see if there is any difference between the Steeda filter and the smaller AEM. Gas mileage was practically the same as my CAI with the Steeda filter.
4) Gears. I had 3.73's installed. Gas mileage in the city or in hilly terrain with lower speeds (about 50 mph) has increased. Plus 1 or 2 mpg.
Highway mileage is down to about 23 to 24 mpg. That's doing about 65 mph in hilly terrain. Minus 1 or 2 mpg.
For me, the best mileage I got was a 93 octane tune and the stock intake or my crazy, oversized, restrictive air intake experiment. If you do almost all city driving, then I actually recommend getting gears, too.
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