Gas savers

[Denski Sison]

Anyone have experience with these?

[bochi168]

sir denski, doesn't work. and even if it does... normally, mga one year lang yan gagana then sisisrain na yung makina mo... so no point in using it... based on experience lang yan (5 years mechanic nako and i own two talyers)hehehehehe

[scout99]

Here's a real gas saver: drift and drive behind a big rig.

Saw it on mythbusters, driving as little as 20m behind a big rig increases fuel efficiency by 13%, driving an insane 2m behind gives you fuel savings of 93% :D

Is being in the blind spot of the truck worth it.....clearly not hehe

[Denski Sison]

sir denski, doesn't work. and even if it does... normally, mga one year lang yan gagana then sisisrain na yung makina mo... so no point in using it... based on experience lang yan (5 years mechanic nako and i own two talyers)hehehehehe


Just as I suspected, too good to be true. You just saved me a lot of money. Thanks.

There are two kinds here being offered to me. One cost 3k with a 1 year lifespan and the other around 6k (forgot the amount but its around that figure) that supposedly lasts as long as your engine.

My trooper guzzles alot of fuel for a deisel engine... I was considering buying one of these "gas savers."

Kuripot kasi bah :D

[MSG Bates]

An additive could work better... I just need to look up the name for the diesel one, I used the one for gasoline which makes the smell of the smoke in my exhaust like french fries... It did save me 10% considering it saved me 30% for the liter mark but add the 1000 price tag and it quickly drops to 10% peso savings...

[bochi168]

Just as I suspected, too good to be true. You just saved me a lot of money. Thanks.

There are two kinds here being offered to me. One cost 3k with a 1 year lifespan and the other around 6k (forgot the amount but its around that figure) that supposedly lasts as long as your engine.

My trooper guzzles alot of fuel for a deisel engine... I was considering buying one of these "gas savers."

Kuripot kasi bah :D

first of all... normal naman sa atin na maghanap ng new ways and means to save a few bucks.... kaya i would like to gladly help you.

secondly... gas savers have been able to fool a lot of people for the longer time known na.hehehehe

lastly.... hmmm... let me guess... chaos ba yung brand na binebenta? trooper... diesel.... try mo pacheck up and re-calibrate your trooper's injection pump. nung ginawa namin sa hi ace namin yun... naging mas matipid and mas tahimik. pero dapat sa pro mo pagawa... dun sa may mga calibrating machines tlga... mas tiwala ako sa may mga Php2,000,000 worth na bosch machines as an equipment..hehehe change the nozzle tip to xecel brand... mas mahal ng konte peo worth it... matagal masira.

An additive could work better... I just need to look up the name for the diesel one, I used the one for gasoline which makes the smell of the smoke in my exhaust like french fries... It did save me 10% considering it saved me 30% for the liter mark but add the 1000 price tag and it quickly drops to 10% peso savings...

we have those additives... mobil yung brand... for diesel fueled engines.... but you must read the instructions carefully and strictly follow them kasi it could cost you your engine pag nasobrahan. and you can only use it once a month pag nagpapafull tank ka.... if you use it in every full tank... sisisrain nya yung injection pump mo... maluluto. pero effective nga to for gas saving and cleaning your engine.... pero d pwedeng palagi. just my two cents.

Here's a real gas saver: drift and drive behind a big rig.

Saw it on mythbusters, driving as little as 20m behind a big rig increases fuel efficiency by 13%, driving an insane 2m behind gives you fuel savings of 93% :D

Is being in the blind spot of the truck worth it.....clearly not hehe

now this is a new info... but i think super helpful.... ma try nga.... but IMHO... i think that 93% yung tipid mo kasi mga 40% ng air resistance, natatanggal due to the massive truck in front of you.... 53% naman yung natitipid kasi ganung ka rin kabagal tumakbo.hehehehe:D

[MSG Bates]

Yeah you're right the mobil one can be used, but I think I also tried motorup which was pretty good. Oh and driving behind a truck? So now I have to wait for a truck to pass by to go and drive... (I watched that mythbusters episode too)

[Denski Sison]

Injection pump eh? Goodyear servitek services my family's cars and delivery trucks for years now. Dun ko pagagawa.

Hiding behind a truck creates less wind resistance.

Out ang addtives sa akin. High maintenance. Couldnt even remember the day I went to a gasoline station for diesel, much alone remember schedules for putting in additives hehehe I am bound to mess this up.


There is this myth I always hear. Putting your gears to neutral and freewheeling can damage your engine?

[bochi168]

Injection pump eh? Goodyear servitek services my family's cars and delivery trucks for years now. Dun ko pagagawa.

Hiding behind a truck creates less wind resistance.

Out ang addtives sa akin. High maintenance. Couldnt even remember the day I went to a gasoline station for diesel, much alone remember schedules for putting in additives hehehe I am bound to mess this up.


There is this myth I always hear. Putting your gears to neutral and freewheeling can damage your engine?

1. trust the serviteks.hehehehe
2. if they have the calibration machine and proper equipments, go for them. otherwise... no matter how good their mechanics are... hindi nila magagawa to.hehehehe
3. additives... just try it once... kahit na once in your life time lang... big difference na. then forget you even did it na.hehehehe para malinisan lang kahit once lang yang car then dont do it ever again. but read the instructions parin.hehehehe
4. the myth aint true.... how can u damage something that does not make any contact with anything.... ergo no friction... which causes damages? tama ba?hehehehe and based on experience, it does not damage the gears... ingat lang sa pagbalik. now with automatic... possible na mangyari to based on the theory na you have no cluth.... but it can be contradicted with the idea that it has no clutch din.... and based on experience, i shift gears without pressing the clutch if im in the mood to fool around but it takes a lot of practice.hehehe

anyway, to cut the story short... no. i dont think it damages the gears. but it would be unwise to do this (but i do it any way... for gas saving and easy drifting... and yes... mas mabagal bumaba yung speed pag naka neutral) because the brakes will be SIGNIFICANTLY weaker... so dont do this kung d ka sanay... especially sa curves.hehehehe

[Denski Sison]

Hehehe I shift to neutral pag mabilis na takbo ko or going down the hill kasi. Never liked automatic cars... inaantok ako magmaneho sa mga yan.

Additives eh? Sige try ko next week sa change oil ng auto ko.

[Rene Limson]

There is this myth I always hear. Putting your gears to neutral and freewheeling can damage your engine?

Maybe not the engine outright but the transmission first. Even with syncromeshed transmissions, it takes some timing to shift into first or second gear when free-wheeling and the potential damage to the gear. (Shift to fifth or fourth.)

synchromesh transmissions, with some practice (as sir bochi168 said), is doable without pressure on the clutch pedal, or releasing the hold of the clutch pressure plate - true but takes serious practice or break a finger or two in the pressure plate. A broken finger will still enable changing gear but two fingers severed is quite difficult already while a third, forget shifting speed na while mobile. Start engines on second gear. 'Had to do the theory in EDSA just so I don't get towed :mad:

Without sync'ed transmissions, changing gears is still doable but takes lots & lots more of practice. On a truck-tractor, forget it - double clutch 'yun eh. :eek:

Ei, there's more fun than changing gears minus the clutch - change gears using the right foot. 'Saw this done on a Willy's jeep with exposed shift stick.:D:D Well, I got as far as shifting the stick with my left hand so my right can do something else :D:D:D

There's a risk really though when free wheeling, i.e., being in neutral. The steering wheel locked, an experience in an older vehicle though that I find the mech's explanation quite difficult to understand/accept - maybe, if the steering's lock has an electronic sensor. :confused:

[SRG]

i'm not familiar with synchromesh...
pero i practice free wheeling
i don't see how it can damage the transmission
third or fourth gear ko agad binabalik di na ko nagdadaan sa first and second gear
kapag 1st or 2nd gear minsan parang nag-eengine brake or nag-oover rev
baka yun ang nakakasira ng transmission

[Denski Sison]

Baka nga...

But I have no problem with those things, magaling ako magtiming hehehe

[bochi168]

Hehehe I shift to neutral pag mabilis na takbo ko or going down the hill kasi. Never liked automatic cars... inaantok ako magmaneho sa mga yan.

Additives eh? Sige try ko next week sa change oil ng auto ko.

STOP! hindi sa oil yung sinasabi kong additives ah... sa fuel mo mismo.hehehehe i dont like engine oil additives. use mobil one... d na kelangan ng additives. pero sa trooper... use only besco oil... no additives din.hehehehe

[Denski Sison]

Yup sa fuel nga... sila na papalagay ko at wala ako talent sa pag tiyempo ng mix ng mga yan hehehe sige I'll ask about besco oil.

[dexmax]

as I understand, to be able to save gas/diesel you may use a leaner mixture. That is, excess air is force fed to the system to increase efficiency.

But, claims from these fuel savers are unbelievably high.. 30%, 50% in some.. It just marketing mambo jumbo.

The concept of employing leaner mixtures by employing more air have been proven to improve fuel consumption, but not performance [unless you completely change the fuel].

Laboratory tests claim that otto engines, when using lean mixtures can approach diesel engine efficiencies but cannot surpass them.

For gasoline engines, there is a way to introduce more air, but it is not a guarantee. You can force introduce air at the intake manifold, but as I stated, this is not a guarantee that the engine will perform better. There's even a chance that you will be using more fuel for the engine to start or keep running.

Theoretically, the more air you put the more efficient it becomes. But fuel can only be vaporized so much. This is usually the limitation.

Modern cars are very efficient. I don't think you will feel a difference because A/F ratio is optimal. And for this reason, there's no need for this devices. On older cars, however, especially those w/c carburetors, most can benefit from this since the old carbs do not vaporize the fuel as efficiently as the new EFIs, or whatever the car manufacturers call these days.

[bochi168]

Yup sa fuel nga... sila na papalagay ko at wala ako talent sa pag tiyempo ng mix ng mga yan hehehe sige I'll ask about besco oil.

yung besco oil... i think yan lang tlga ang gagana sa trooper (based on experience)hehehehehe

as I understand, to be able to save gas/diesel you may use a leaner mixture. That is, excess air is force fed to the system to increase efficiency.

But, claims from these fuel savers are unbelievably high.. 30%, 50% in some.. It just marketing mambo jumbo.

The concept of employing leaner mixtures by employing more air have been proven to improve fuel consumption, but not performance [unless you completely change the fuel].

Laboratory tests claim that otto engines, when using lean mixtures can approach diesel engine efficiencies but cannot surpass them.

For gasoline engines, there is a way to introduce more air, but it is not a guarantee. You can force introduce air at the intake manifold, but as I stated, this is not a guarantee that the engine will perform better. There's even a chance that you will be using more fuel for the engine to start or keep running.

Theoretically, the more air you put the more efficient it becomes. But fuel can only be vaporized so much. This is usually the limitation.

Modern cars are very efficient. I don't think you will feel a difference because A/F ratio is optimal. And for this reason, there's no need for this devices. On older cars, however, especially those w/c carburetors, most can benefit from this since the old carbs do not vaporize the fuel as efficiently as the new EFIs, or whatever the car manufacturers call these days.

hmmm... very good point indeed. we change the airfilters into cone type cold air filter to increase the efficiency of the gas burning... but then again, what makes the gasoline spark if not the spark plugs... am i right? and altho the newer cars are much more fuel efficient, i believe they havent reached their maximum fuel efficiency just yet.heheheh

[Jinx07]

Hey, I find this thread interesting. I used to try shifting without stepping on the clutch, and sometimes, the sound really is annoying and feels like I'm the one being hurt (Guys, I don't know but I'm so attached with my car),so I stop doing it. But try doing this.... use your right foot in stepping on the breaks.... Its kinda hard at first! But you'll get the hang of it!

[XXXyzledge]

shifting without stepping on the clutch is doable
going to 3rd or 4th or even the 5th gear...
all u need it good timing.

for modern cars, its advisable to put in fuel additives
bi-annually... this is to clean-up your fuel injectors so
ur fuel atomizes better... thus, a better combustion.

with regards to free-wheeling, i do this with my altis AT
often since i pass by south superhighway daily...
im getting 15km / liter consistently...
she is now 4 yrs old & still running smooth....

[Rene Limson]

shifting without stepping on the clutch is doable
going to 3rd or 4th or even the 5th gear...
all u need it good timing.

for modern cars, its advisable to put in fuel additives
bi-annually... this is to clean-up your fuel injectors so
ur fuel atomizes better... thus, a better combustion.

with regards to free-wheeling, i do this with my altis AT
often since i pass by south superhighway daily...
im getting 15km / liter consistently...
she is now 4 yrs old & still running smooth....

Is that the same as altima that is being recalled by Nissan? - hehehe.

That must be boring going through SSH everyday, sir XXXyzledge. Instead of freewheeling, why not try the ACC or adaptive cruise control where your car would auto-keep safe distance from the followed vehicle (sensed by radar or laser). Kaya lang pag biglang lumiko and unang car, liliko ka rin - :D:D; watch out, masisira bubong ng car mo - :D

------

Originally Posted by dexmax View Post
as I understand, to be able to save gas/diesel you may use a leaner mixture. That is, excess air is force fed to the system to increase efficiency.

...

Theoretically, the more air you put the more efficient it becomes. But fuel can only be vaporized so much. This is usually the limitation.

Modern cars are very efficient. I don't think you will feel a difference because A/F ratio is optimal. And for this reason, there's no need for this devices. On older cars, however, especially those w/c carburetors, most can benefit from this since the old carbs do not vaporize the fuel as efficiently as the new EFIs, or whatever the car manufacturers call these days.

The same is true for aircraft engines. However, air density (due to variable altitude) plays a role too, i.e., as air becomes less dense in altitude, fuel ratio is decreased (controlled by the mixture control) or make the fuel leaner; else the fuel is simply wasted.

Though land vehicle A/F ratio are pre-set (possibly optimal) at seal level air density, I wonder if air density can be decreased when cruising that will require less fuel to be fed and thus fuel savings. :confused::confused:

[bochi168]

Hey, I find this thread interesting. I used to try shifting without stepping on the clutch, and sometimes, the sound really is annoying and feels like I'm the one being hurt (Guys, I don't know but I'm so attached with my car),so I stop doing it. But try doing this.... use your right foot in stepping on the breaks.... Its kinda hard at first! But you'll get the hang of it!

sir... brakes mo not breaks. anyway... brakes nga ba? ako naman kasi, revving the engine yung ginagawa mo para pumasok. pero this will consume a lot more gas. kasi kelangan, higher rpm to be able to accomplish this (shifting form a lower gear to a higher gear) without that annoying sound of gears being crushed and grinded.hehehehehe para sa tamad mode lanbg to but it doesnt help fuel efficiency in any way.hehehehe but it's so much fun.hehehehe

shifting without stepping on the clutch is doable
going to 3rd or 4th or even the 5th gear...
all u need it good timing.

for modern cars, its advisable to put in fuel additives
bi-annually... this is to clean-up your fuel injectors so
ur fuel atomizes better... thus, a better combustion.

with regards to free-wheeling, i do this with my altis AT
often since i pass by south superhighway daily...
im getting 15km / liter consistently...
she is now 4 yrs old & still running smooth....

sa automatic cars free wheeling, ok lang naman cguro. but based on experience din, you wont feel the problems until it reaches the 5th year. based on experience lang naman po.hehehehehe and yes... mas matipid nga talaga when you go free wheeling for two reasons. 1. mas mababa yung rpm mo pag naka neutral kesa naka gear. 2. mas matagal bumaba yung speed ng car mo (lower deceleration rate).


Is that the same as altima that is being recalled by Nissan? - hehehe.

That must be boring going through SSH everyday, sir XXXyzledge. Instead of freewheeling, why not try the ACC or adaptive cruise control where your car would auto-keep safe distance from the followed vehicle (sensed by radar or laser). Kaya lang pag biglang lumiko and unang car, liliko ka rin - :D:D; watch out, masisira bubong ng car mo - :D

------



The same is true for aircraft engines. However, air density (due to variable altitude) plays a role too, i.e., as air becomes less dense in altitude, fuel ratio is decreased (controlled by the mixture control) or make the fuel leaner; else the fuel is simply wasted.

Though land vehicle A/F ratio are pre-set (possibly optimal) at seal level air density, I wonder if air density can be decreased when cruising that will require less fuel to be fed and thus fuel savings. :confused::confused:

the laser thing... scandalous/hilarious/super funny/humorous/comical.hehehehe

about the lower air density... i would like to know what you guys are talking about. meaning... im interested to know more about this.hehehe but i do get what you guys are trying to say... you mean the air intake ba?:confused:

[Jinx07]

Hey, I find this thread interesting. I used to try shifting without stepping on the clutch, and sometimes, the sound really is annoying and feels like I'm the one being hurt (Guys, I don't know but I'm so attached with my car),so I stop doing it. But try doing this.... use your right foot in stepping on the breaks.... Its kinda hard at first! But you'll get the hang of it!

I'm sorry mga fafa. Using the left foot I mean to hit the brakes. Sorry po, tao lang! :D

[bochi168]

I'm sorry mga fafa. Using the left foot I mean to hit the brakes. Sorry po, tao lang! :D

left foot on the brakes? yikes! super hirap nito. kasi super sanay ang utak natin na gamitin ito pang clutch kaya lang control pag ginamit pang preno.hehehehe just my two cents.hehehehehe pabigla bigla preno mo nito.hehehehe

[warblade]

i heard it from a motor-talkshow that anything above 80mph is wasteful on gasoline consumption. but in practice, in order to save up on fuel i dont rev-up the engine when shifting gears (like some jeepney drivers do. i wonder why they do it? maybe they like the sound of it? :D)

does anyone of you btw practices 'torquing' your velocity up without shifting to lower gears? you know, just feeling your engine connecting to the transmission without forcing your speed up. :o

[hfc22]

but in practice, in order to save up on fuel i dont rev-up the engine when shifting gears (like some jeepney drivers do. i wonder why they do it? maybe they like the sound of it? :D)


they rev it kasi nahihirapan pumasok sa gear. you will notice na may pressure na yung kamay nila dun sa shift stick then once i rev biglang papasok yung gear.


with regards to free-wheeling, i do this with my altis AT
often since i pass by south superhighway daily...
im getting 15km / liter consistently...
she is now 4 yrs old & still running smooth....


on A/T NEVER shift to neutral when the car is moving. the engine is responsible for pumping ATF sa tranny which goes to the torque converter rin. walang mag cicirculate na atf sa tranny pag naka neutral. same applies when your AT car is being towed with the front tires touching the road.


introducing more air to the mix is not as easy as changing your air filter into a cone type simota/knn filters. lalo na on newer cars, heck you cant even adjust your air fuel mixture e.

kasi its all controlled by the ECU if the maf or air sensor senses too much air is coming in it will automatically release more gas to compensate. too much air and little gas is bad for your engine. running too rich or vice versa is bad dapat sakto lang. mas advisable pa to change your air filter regularly kesa mag cone type filter pa.


using fuel additives/ injector cleaners is okay. i forgot the name but you can buy it at ace or SM its a yellow sexy shape bottle. some say that adding acetone to your gas tank saves gas too.


KHAOS?!?! hindi totoo yan! eto yung laman nyan sa loob

http://img.photobucket.com/albums/v382/mnmc10/300KSTC_diagram-med.jpg

eto totoong gas saver and it wont even cost you a single peso! really effective! promise!































































http://img.photobucket.com/albums/v382/mnmc10/detgep.jpg

[Denski Sison]

Hahaha... okey na gas saver yan ah. :D

[warblade]

parang sagad yata sa pedal ang gizmo (kahoy, pangkalang, atbp :D) sa pedal. he he. no wonder it'll save on gas. ;)

i thought 'micro-turbines' yung nasa loob ng khaos and its supposed to be a mini turbo-charger. :)

[SRG]

i heard it from a motor-talkshow that anything above 80mph is wasteful on gasoline consumption. but in practice, in order to save up on fuel i dont rev-up the engine when shifting gears...
tingin ko totoo yung 80 kph speed gas saver
na try ko na sa expressway tumakbo ng 120 kph vs 80 kph
mas maaksaya sa gas yung 120 kph
pero mas masaya! hehehe

i also don't rev up my engine
hanggang 2000 rpm lang nagsh-shift na ko
kasi in theory higher rpm mas malakas humigop ng gas

[Caloy]

The faster you go, the more energy you need to overcome drag. But it's also inefficient to run at 20 mph at 1st gear since the engine haven't reached it's most efficient RPM range. If your engine has reached that range, the power produces would be enough to set it on highest gear and that would mean more tire rotation per engine revolution.

I think the best fuel milage you can get out of a vehicle is to travel the least possible speed in top gear while hitting your engines most efficient rpm curve (meaning that peak torque and HP was reached in the lowest RPM). Once you get that optimal speed, I would suggest to remain on that speed. Much like marathon runners, pacing is the key. Accelerating consumes more gas then breaking. If possible use your cruise control once you reach optimum speed.

Look ahead, if you see the stop light in red, then slow down. The key is to reach the end of the car ahead of you just as it is accelerating when the light goes green. This would minimize you to stop and then accelerate which would need more gas compared to timing it so that you would just slow down and save your momentum then just wasting it by breaking to a stop.

[calicot69]

parang sagad yata sa pedal ang gizmo (kahoy, pangkalang, atbp :D) sa pedal. he he. no wonder it'll save on gas. ;)

i thought 'micro-turbines' yung nasa loob ng khaos and its supposed to be a mini turbo-charger. :)

Ung advertised po na micro turbine thingy na placed in-line with air intake, supposedly to cause more air turbulance para mas efficient ung A/F mixing once the intake valves open, any good? Para atang pseudo supercharger kalalabasan nun tama po ba?

[ae92red]

mas mahirap mag kumagat ang brakes pag free wheeling.. tried and tested... just went to tagaytay last night...tried freewheeling and 5th gear running... mas ok ung nkapasok sa gear...nakakatakot pa pag freewheeling.. la ka control sa car with the brakes

[whitehusky]

the best gas saver is a light right foot.

i dont see why freewheeling reduces braking power...

this is true when in low gear but when you reach top gear, everything should be normal.

correct me if im wrong though.