Does Fuel Shark Really Work?

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Does Fuel Shark really workFuel Shark is definitely an attention getter in this economy. It seems each summer gas prices are expected to hit new highs. They’re already at ridiculous levels compared to three years ago. So when something comes along that promises better gas mileage by just plugging it into your car, it’s going to turn some heads. But is Fuel Shark all it’s cracked up to be, or is this something you can take a pass on and never look back?

Overview
Cars are a mystery to most people, and car repairs cause a panic because we don’t want to get taken advantage of by a mechanic. That’s why when a product like this comes along, most people will be interested in it because it allows them to help their car without actually getting under the hood. In this technology-riddled age it also seems plausible that you could plug something into your a dashboard that makes your car run better.

The Claim
By stabilizing the voltage in your car, its electrical system will be able to operate more efficiently, thereby saving you on gas. They also claim that this is a green product that is helping protect the Earth by lowering emissions and helping use less gas. They state that you’ll get better horsepower and your battery will last longer. They say it starts working the moment you use it, and you don’t need a mechanic to help you install it.

They make all of these claims knowing full well that the average user will not be able to check to see if it’s actually doing what it says or not.

The Hype
The hype comes from the idea of being able to improve your car’s performance by plugging something into the cigarette lighter. That port is not a communication device with your car’s electrical system. Your batter just sends voltage to it so you can charge things like cell phones and iPods. It’s not a transmitter and receiver, and it’s not waiting for a response from the thing you plug into it. It has only one function, light cigarettes and charge things.

The Cost
The Fuel Shark is set at a price that makes people want to give it a shot. They figure if they can really save up to 3 miles per gallon they will quickly be able to recoup the cost of the Fuel Shark, and then everything else is pure savings. It costs $30 plus shipping and handling. It comes with a guarantee, but the product is likely manufactured so cheaply that they still make a profit on the shipping charge alone.

The Commitment
This is where they attract the most customers, because there isn’t any commitment involved at all. Just plugging the device into a cigarette lighter is something that anyone can do, even those that don’t know anything about car maintenance and repair. This makes it the perfect product to prey on those that want to save money, improve their car’s performance, and not have to get their hands dirty.

Evaluation
There is no possible way that the Fuel Shark can do the things they claim to do with the product they are providing. While some of what they say is true about how your car works, almost none of what they claim the Fuel Shark can do is legitimate.

The electrical system does play a part in your car’s mile per gallon performance, and it’s a good idea to keep your fuses and your spark plugs well-tuned. Most people won’t have these checked on a regular basis, so you can get the benefits they claim by just having your fuses and spark plugs checked at your next oil change. This will run you about the same price as a Fuel Shark and actually provide some benefits.

What People Are Saying
The general consensus for Fuel Shark is that it’s a $30 light up toy for your car. Those that have tried it have stated emphatically that it did absolutely nothing, and just provided an electrical drain for their car by using electricity to power the LED light.

Claims made by Fuel Shark:

Final Fuel Shark Review

Fuel Shark definitely goes into the Hall of Shame. With the claims they make, and the type of customer they target, they should be ashamed of themselves. There really needs to be a governing body that keeps products like these off the market. The FTC should really crack down on companies that make unsubstantiated claims and sell products that have no proof associated with them.

Our Recommendation
You can safely avoid the Fuel Shark and save your money. Buy an extra tank of gas with the money you save and don’t give it another thought. This is one of those products that make other As Seen on TV products look bad.

If you want to save money on gas, check out Tree Huggers 66 Ways to Save Money on Gasoline

What do you think? Does Fuel Shark work or not?

38 Customer Reviews on “Does Fuel Shark Really Work?

  1. Being aware that you could be getting better mileage will change driving habits.

    If you change your driving habits you can improve your mileage, substantially!

    automotive placebo effect?

    As an electrical engineer, I can tell you that your car already has a system to regulate the voltage. When the voltage regulator fails, you battery stops charging, or is over charged, and next thing you know, the vehicle won’t start and the battery is dead or even sometimes ruined.

    Adding a small capacitor to the system is unlikely to improve voltage regulation much if at all (perhaps just measurable), and the value of this capacitance is tiny compared to the current normally flowing in your electrical system. Additionally, most automotive components are designed to work over a wide range of voltages, and those systems that need a tightly regulated voltage (like sensors) are always provide a regulated and filtered voltage by the engine control circuitry; otherwise, the sensitive electronics would not work correctly.

    I firmly believe that anyone who reports an increase in mileage after installing such a device, must have changed their driving habits enough to make a noticeable difference (it is actually very easy to get better gas mileage by changing your driving habits). Weather will also affect gas mileage.

    It also appears to me that most of the positive reviewers are being paid by the promoter of this scam product.

    Capacitors in parallel do decrease high frequency noise, but the electrical system in the car is already designed to deal with electrical noise which is normally present (voltage regulation has to be included in the designed in order for the system to work as intended, and the car battery itself acts as a capacitor). Adding distributed capacitance (look it up if you don’t understand) is very unlikely to change anything but for one except… you might get slightly better AM/FM reception if you radio was cheap, or if the vehicle’s ignition system (very noisy from an electrical and RF perspective) is not working correctly…

    research: resistor plugs, resistor wires, capacitance at distributor, or series inductors for conducted electrical ignition noise suppression if you want to learn something.

    Anyway, if you are in doubt, find an automotive or electrical engineer, and ask them if a adding small capacitor to an automotive electrical system would make any difference, anyone worth their salt will be very skeptical.

    People who install stereo amplifiers to cars often add huge capacitors (thousands of times bigger than the one in this device) right at the amplifier, on heavy wires, in order to give the audio system overhead (just look it up), and none of these millions of automotive audiophiles seem to notice a sudden increase in mileage.

    The mileage claims for this device is complete bunk, and the marketer preys on the 300 million U.S. citizens who do not have even a rudimentary understanding of basic physics, much less electronics. To bad you all took art appreciation, home economics or 4 years of gym instead of actually getting a high school education.

    You, the vast majority of my fellow citizens, are very ignorant to the ways of nature, and are scared silly of science and technology; however, you are smart enough to watch shark tank, celebrity apprentice, or “reality” shows. I am ashamed my country due to the undeniable ignorance of my fellow ‘mericans. Looks like the decent into Idiocracy is at hand. If only my morals underpinning would allow me to take advantage, I would get wealthy selling snake oil, or god, but alas, like many atheists I am just too damn ethical to take advantage of the ignorance of others.

    Oh yeah, if you want better mileage; assuming you have plugged your vacuum leaks, and other normal tuneup items like replace old spark plugs, distributor, plug wires, so the vehicle is running correctly (you know like when the check engine light is off!), you must do the following:

    plan ahead for braking (change your driving habits )
    decrease your maximum sustained speed (change your driving habits)
    (wind resistance increases dramatically with speed… demonstrable with the hand out the window technique)
    inflate your tires to the maximum recommended pressure
    drive in the highest gear available (change your driving habits)
    roll up your windows when going fast (aerodynamics become quite important 50mph and over)
    plan ahead and leave early for your trip (part of change your driving habits)
    change to the lightest synthetic oil appropriate for your engine
    take the silly team flag off of the vehicle
    remove unused antennas
    remove the ski rack or other projections if possible
    turn the AC off if you don’t need it (and only use defrost setting when needed)
    don’t run electrical window heaters or seat heaters unless needed
    drive the car that already has a warm engine (heating an automotive engine to operating temperature uses a lot of energy, all or which is wasted when it cools off)
    avoid driving when ambient air is cold 90F
    use vent instead of AC

    the gulf clubs, dishes, bowling ball, bags of clothes,
    whatever junk is in you trunk, take it out and leave it at home

    ALSO:

    take the car instead of the truck
    manual transmission instead of automatic (big difference)
    diesel engine as opposed to gasoline (big difference)
    trade the truck in for an old Saturn 5-speed manual (big big difference)

    So, your hard earned $ can be better invested by stopping at the 25 cent tire pump. If you don’t have a spark plug wrench I would suggest you find a friend who does, but air up your tires on the way to her house. and yes, I would change almost anyone’s plugs for a six pack locally brewed beer (maybe not an Astro van).

    Also;

    EVERY TIME YOU BRAKE TO SLOW DOWN YOU ARE WASTING ENERGY

    Plan ahead not to use your brakes as hard or as often and you will get better mileage. This I absolutely guarantee. Additionally you can keep the money you save on gas as I don’t want it,

    But please quit wasting fuel and unnecessarily polluting the atmosphere, let’s leave a little something for the future.

    Using all the techniques I’ve documented above, I increased my vehicle’s mileage from 28-30MPG original to over 40MPG (OK, only 37MPG average in the dead of winter). So I know that few changes in your driving habits would get you part way there.

  2. Welllllll, all i can say or observe is that this mysterious device seems to work on some cars and doesn’t on some others probably due to different electrical systems.

    One of the reviews clearly states it made some electrical components to last longer than expected (like brake ligjht fuse, battery etc) but doesn’t save fuel. All in all, if you have money to spare, give it a trial and post your experience.

  3. As a matter of fact,av came across series of fuel saver but this Fuel shark really work,I used it in my Kia rio 2003 model and it work very fine,I lived in Nigeria and a lot of people have been begging me to get it for them,av also came across one friend or two that are using it too.so it work.i will advice the manufacturer to please come to Africa most especially Nigeria.

  4. Fuel shark works for me and my Benz E350 2007 & Toyota Matrix 2008
    Since I got it, been buying fuel less times than I used to.
    Never understood why or how it works, but now after reading the review I can appreciate that with voltage regulation the car will perform better and thus save fuel.

  5. That technology has nothing to do with this type of scam product. The original poster is an idiot. He just put some random technology and is hoping that some non-technical person won’t understand what the I-Elopp is. This company is trying hard to combat negative reviews by posting some scam postings on how great this product is. Amazing!

  6. If you bought this product you should just send me your money and I will kick you in the balls. This would actually cost you more money with their philosophy because you alternator needs a higher output to feed the device, which either way doesn’t work. Don’t be an idiot and fall for it.

  7. I got “cheated” by a friend saying this type of products saved him lots of fuel, in Kuala Lumpur, a big time jam up city. So i decided to give it a try, our group bought a few and put in the car. After 1 month everybody started cursing him for “cheating” us, that the sh*t does not save any fuel but a little light in the car.
    But to our surprise, after few months (since we’ve already bought it, might as well plug it in the car, damages are already done anyway), we found that the brake lights would not get fused so often (it is a Proton, low quality car manufacturer), and my car battery (Hyundai Sonata 2.4L) would not die so fast. My personal experience was that I changed my battery every 6 to 7 months prior to that. And now my battery is 17 months old, and still using…
    No matter what, my fuel consumption is still killing me…. about 400km for a full tank of around 55 to 60 liter…..

  8. This is total BS. There’s no way a tiny gadget that consumes a little bit of electrical power can *improve* fuel efficiency.

    Those who swear it does are in the same league as anti-vaxers and creationists. In other words, deluded idiots.

  9. all i can say it works on our v6 camry.. put one in my 4×4 ford courier 2.6L petrol.. so i’ll let you know if it works on that as well.. got mine from china around $2.68 including postage..

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