easy mpg increase?

[razr_88]

do you think that if you use the cruise control to get up to highway speed would increase the mileage. i know my cruise control has kind of an aggressive attitude, but still, it would be designed for economy acceleration, wouldn't it?

[olds8894]

I wouldn't waste my time messing with the cruise just to save a buck or two. I found that if you accel. rather quickly, the MPG is better. Not to soft and not balls to the wall.

[Alibi]

Here is another power increase that I'm going to try, probably before the CAI

http://www.automotiveforums.com/vbul...d.php?t=558838

Better idle and more power on acceleration may help MPG, especially the idle. If not, then I doubt that a coil-style change would be detrimental to fuel economy.

[razr_88]

i figured out how to keep the electrodes on my homemade eloctrolysis unit from corroding too quickly.... i discovered if you use pencils and shave the wood off most of the pencil, the graphite doesn't corrode and it lasts longer!! im a fweekin genius bwaby!!

oh and i have notice a slight increase in my mpg... i think i may try to come up with some kind of device to make more hydrogen and run it throught a hose, instead of just hoping the engine will suck it in...

[razr_88]

i figured out how to keep the electrodes on my homemade eloctrolysis unit from corroding too quickly.... i discovered if you use pencils and shave the wood off most of the pencil, the graphite doesn't corrode and it lasts longer!! im a fweekin genius bwaby!!

oh and i have notice a slight increase in my mpg... i think i may try to come up with some kind of device to make more hydrogen and run it throught a hose, instead of just hoping the engine will suck it in...

[razr_88]

i've been doing a little bit of research, and i found that if you use a performance aftermarket cone shaped cold air intake, not only do you get more power, you get better economy as well. just so long as you resist the urge to use this newfound power in rabbit starts. just drive like you normally do, and it should increase your mpg!!

[acidcrashdburnd]

my mom has a 01 GTP and she just changed her oil to the synthetic oil before she was getting about 16.5 mpg now she gets 20 she has a smaller pully on her supercharger cold air intake and a biggger pipe coming from the engine to the exhaust

[razr_88]

how many mpg do you guys think i could squeeze out if i bypassed the ac pulley the next time i change my serpentine belt?

[dmanlyr]

Originally Posted by razr_88

how many mpg do you guys think i could squeeze out if i bypassed the ac pulley the next time i change my serpentine belt?

ZERO, or at the least less than one tenth of a mpg - unless of course you use your a/c.

The reason? Well it takes a extremly small amount of horsepower to turn a pulley that is not connected to anything, as is the case when you do not have the a/c turned on. When you turn it on, a electromagnetic clutch engages the actual compressor which takes the power.

You could probably save a whole lot more by a watching the traffic lights, and speeding up when they are about to turn from a green so you can make the light on a green and not have to waste the fuel with a stop and restart.

Along with that, if the light does turn red, get your foot off the throttle as soon as practical rather than charging the light and hitting the brakes at the last miniute.

You should be able to squeek out close to 30 on the hiway and around 20-22 average between city and hiway with the upper teens for all city driving. Unless of course you spend a exceptional amount of time idling, in which case you should shut off your engine.

Anything less than above mpg, I would think that you either need to fix your car running problem or adjust your paticular driving style. Or maybe a bit of both?

One last thought - you could bypass your power steering pulley and save a bit of fuel, but it will make it a bear to drive. But I do imagine that you would probably see a .2 to .5 tenth improvement in your mpg.

Just my two cents ~ which work well with my Olds 98's / 3.8's ~ David

[razr_88]

hmmm... well, my compressor clutch doesn't even work in the first place... in fact i think maybe i should take a look at that when i get home tonight... if it's kind of difficult to turn i may just take the clutch out completely. that will keep it from being difficult to turn (i hit something and it seized up or sumthing...

[dmanlyr]

Sounds like a good plan, if your a/c clutch is always engaged then you are definatly wasting a bit of fuel that you could save.

David

[razr_88]

what about the fuel filter? can changeing a dirty one that increase you mpg? if so why would it increase the mpg...

[Alibi]

Yes, nasty fuel filters do impede your MPG b/c less fuel is able to travel to your injectors. As you press the accelerator more to get push fuel through the crap in your filter, you not only wear the pump faster, but fuel in spurts as backpressure in the lines force the fuel through the nasty filter after sufficient pressure is built. A clean filter will allow constant flow of fuel to your engine, which can maximize its use without being starved or flooded by fuel coming though a nasty filter.

[razr_88]

now i've been looking at getting an aftermarket air filter, but i would like to know. i have a cavity that could fit the air filter right above my charcoal canister. the only problem is that it is kind of warm. without a box to seperate the air filter, will i be able to increase the mpg using the warmer air, even if it isn't hot... just u no warm?

[Alibi]

You could get a K&N filter that would just drop into the stock air box. Or, you could get a K&N cone filter and attach it on the end of an L-shaped pipe out of your throttle body (ram air, basically). Although the space would be greatly improved by going the second route (after removing the stock air intake), you would be sucking in warmer air. An aftermarket filter, such as a K&N cone filter, would probably still help mpg and HP although it would be sucking in more warm air than the stock system was (had that annoying plastic "snorkel"), unless you box it off to create a CAI box...which is really pretty simple to do if you don't mind using cardboard for a while