Does Fuel Shark Really Work?


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?


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{ 18 comments… read them below or add one }

Michael Salisbury April 18, 2012 at 11:27 am

I started using the FuelShark, and let me tell you. I put the thing in an inconspicuous power/lighter port in the back seat of my father’s car. I noticed a few days later that he kept telling my mom that he noticed about a 3 mile per gallon increase in the gas mileage. He had stated this with absolute ignorance toward the FuelShark’s presence in his vehicle. He can state this simply by peering onto his M.P.G. display that his HHR comes with. Also, in regards to the claims that the cigarette lighter cannot transmit signals to the computer/power system is bogus. There is absolutely a device that will charge your battery right from your cigarette lighter, and that absolutely, without a doubt, works. Therefore the fact that you can have a voltage regulator that simply plugs into your lighter port is not all that far fetched. All that I ahve said is true. I know this product is unpopular; however, I genuinely suggest that individuals give it a try… especially those vehicle owners that have M.P.G. displays (that will take the mathematics and mystery out of it) that can give them the direct results. Thanls folks.

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Herverd July 19, 2013 at 1:56 pm

Plant.
Or troll. Must be either of thowe two.

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Ernesto June 19, 2012 at 1:32 am

I also bought the fuel shark because i was desperate for more mileage because my truck gets me about 14 mpg after using the fuel shark for about a month i know get 16.5mpg it might not seem like much but it sure makes a difference with a full tank.

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Keith July 2, 2012 at 6:54 pm

I’m sorry, but whoever wrote this review is showing severe limits in their understanding: The principle of applying capacitance across a car’s battery to remove interference is well known, and using the cigarette lighter is a convienient way for a non-technical person to do this. There are several respected companies that make products of this ilk (check Pilot Raizin, Q-Max etc – very well known in Racing/Drifting circles), which, when combined with other measures such as low-impedance earthing straps can measurably improve performance/horse-power/torque/fuel economy etc… with good components, you can improve these things A LITTLE – exactly how much depends on how electrically sound your car is to start with. This Fuel Shark product is sound in principle, but I feel rather over-egging the claims. Whereas a capacitance of between 7,000-20,000 is usually applied across a car battery in a product of reputable make, this product contains just one capacitor of 2,200 (and a blue LED!). It may have some marginal effect in your car, it may not… but to claim outright that it’s ‘snake-oil’ is grossly unfair in my opinion.

And for this review to suggest “…it’s a good idea to keep your fuses… well-tuned… you can get the benefits they claim by just having your fuses… checked at your next oil change” is in my view even more rediculous than the Fuel Shark product claims! No, the Fuel Shark product makes no difference in my car, but technically it could in some others. Tuning your fuses won’t make any difference to anybody – as a qualified electrician I fail to even understand how you can “tune” a fuse. But at least I went to the trouble of buying the Fuel Shark product to evaluate it properly before commenting, which is more than the author of this review appears to have done. At $30, the Fuel Shark does appear expensive against other better known makes with higher capacitance (more effect), but it is available for considerably less if you shop around.

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Clay Renshaw October 5, 2012 at 7:26 pm

This technology has been used overseas for many years very successfully. It was tested at the University of Japan as well as in China by a group of engineers. Both tests resulted in a increase of MPG of a little over 10%. In addition, it was tested on ABC News’ “Test it Tuesday” segment twice with great results. The second time ABC tested it, they took the Fuelshark to a high end auto dealership and had their service dept. test it. The results were positive and the auto dealer ordered the Fuelshark for their Parts Dept. After a couple of months, the manager at the parts dept. stated that they had no complaints from their customers. How do I know this? I own the Fuelshark company. Before putting out these types of reviews, you should truly check the facts. The fact is that after 3 years of being ion business, we have a 99%+ customer satisfaction rate that we are very proud of.

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Mike Lawton December 2, 2012 at 3:17 pm

I have tried the FuelShark. Four months and several tankfulls later, I can report about a 1.5 to 2 mpg increase in fuel economy. I drive a 2000 Subaru Legacy GT, AWD, with 55K miles. For tax purposes, I keep every gasoline receipt and make note of the odometer reading. So, I have a very extensive list of mileage computations to compare. I don’t know how or why but it seems to help a little. I would like to challenge the “arm chair experts” and naysayers to try it first before delivering a negative opinion. I’d enjoy seeing other first hand results posted.

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Jennifer H. July 9, 2013 at 1:59 pm

Interesting! I wonder how many users keep close records on their fuel usage and whether many others find a savings, as you did. When I initially read this review, it seemed logical that such a product wouldn’t work. Now, after reading all the positive comments, I’m starting to wonder…. Since it’s pretty cheap, it wouldn’t hurt too much to give it a try. I’m in California, and I drive a lot for work. I would estimate that I pay around $260 a month for gas. I think I might research a little further, and if I find a lot of reviews like yours, I’ll just go ahead and give it a shot.

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ashen vitharana May 27, 2013 at 9:34 am

this is really cool… but im worried that whether is it bad for engines and the fuel economy…..
would anyone tell the info or details about the fuel shark. . how 2 use it like that etc.

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Vanessa B. July 9, 2013 at 12:57 am

Not sure what to think about this…I’m seeing both good and bad reviews. I was intrigued when I first clicked on this link…wondering, could a simple device plugged into my car help me save gas? But it does seem like it’s just too good to be true.

It seems as though at first glance it wouldn’t work, however, people who have kept records of the mpg they got seem to think otherwise. In any case, I don’t think it’s something I’d try, but if there was a similar product that could effectively prove its efficacy better I might try it.

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Mike Doherty July 9, 2013 at 7:20 pm

Stabilize the voltage in your car? Are you people insane? What malarky! You think the manufacturers of some $30 plastic gadget have solved a fuel efficiency issue that struggling American carmakers have been confounded by for years? Why would your modern car full of bells and whistles not have its own mechanism to balance the voltage? If you invest in this product, I also have a bridge to sell you. It’s centrally located in downtown Manhattan. Frankly, I can’t believe this company hasn’t been sued or shut down for false advertising. This is actually a step below those fuel additive cans they sell at Pep Boys. Fuel Shark has no bite.

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Clay R. August 19, 2013 at 5:54 am

Mazda and BMW just started using this type of technology. A balanced and fully powered electrical system makes a big difference. Check out Mazda’s IEloop system.

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Jimmy B October 17, 2013 at 11:55 pm

I have a 2005 BMW 325i,… I have a hard time believing what fuel shark just did on my last tank. The most miles i’ve ever got per tank is 280,… I just got 330.5. I cant see how this can be,.. and will be keeping an extremely close eye on my next tank. I noticed Clay R’s post,… I think it’s true on BMWs.

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costas onisiforou January 27, 2014 at 8:43 pm

I have already received the Fuel Shark Saver and many thanks.It works perfect but I have a small problem.The nose of the SAVER is longer and is not possible to stay in the lighter hole.My car is NISSAN PRIMERA.,uk made.No problem to other cars I have tried.Please advice me what can I do.

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T_ February 1, 2014 at 6:03 pm

I also was wondering if this product really works. My car is not burning much. I can acheive 45 MPG of city driving. I plugged the wonder product and what a miracle?!! The car began putting back gas to the gas tank!!!
Yeah, right. This never happened.

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TheSyn February 24, 2014 at 11:27 pm

Are you guys absolutely crazy? I have seen some “professional” comments, so I have to put my reaction as well as I cannot stand those idiots persuaded by the placebo of advertisement: You can find a 1000 micro farad capa inside, which cost is around 30 cents, and that is an absolute nonsense. Yes, the principle is working, for example, Mazda uses this, but uses a big fat 120 FARADS capacitor and can save the fuel by stablizing the electrical system, but hardware used in a “FuelShark” is literally not capable of doing such a business they claim. Never. And for those, who are wondering, if it works or not, buy one 1000 uF capa, 4700ohm resistor, one LED and a fuse – total cost is around $3. Connect it together and see the magical difference, assholes. You better get some fuel for 30 bucks, instead of throwing them outta window – thats the only sure and efficient way, how to save fuel with FuelShark. ;)

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Viscount March 14, 2014 at 10:14 pm

TheSyn….most sensible comment I have seen so far. A friend asked me to look at this and my reply was CRAP! you can save a lot more gas by driving gently and sensibly. Put your food down and pay the price!!!

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Ben May 11, 2014 at 10:12 am

Open it up. It’s just a cheap tiny capacitor and a blue light. It’s absolutely laughable. Specifically it’s a (no kidding) 5 cent part: a common 1000 microfarad capacitor, these will store up to 0.0072 joules of energy – about enough to power the blue light for a few seconds. By comparison one gallon of fuel represents 132,000,000 joules. It simply does NOTHING except waste a tiny amount of energy powering the blue light. Why bother with all the write up. Just open it. It should be obvious from its claims it’s [TOTALLY LAUGHABLE] scam nonsense. Kind of like those magnetic wrist bands, but worse. They must be sitting back counting their money laughing at people’s gullibility. You might as well stick an olive in your lighter socket.
PS: I don’t feel the sense in saying this, because it should be obvious to any lay man, but for credibility, I am an electrical engineer and I work with electronic engines. This is the biggest con joke I have ever seen in my life. If you buy into this, I also have a mint condition air guitar and some really good snake oil. Seriously folks, use your head.

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Jan June 28, 2014 at 6:00 am

UMMMMMMMMMMMMMM How about we notice how the Fuel Shark apologists talk in the same pattern! Guess who goes around sticking up for Fuel Shark under different names. This con artist group, that’s who. Feel good cheating people?

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