by 17 people |
Gas Mileage Devices - A Review
Gas burning up your wallet?
With gas prices skyrocketing, there are some devices and modifications you can implement that will increase your fuel efficiency and improve your gas mileage. Some of the gas mileage devices on the market work great, and others are flat out scams. I'm going to show you some of the most popular offerings and tell you which work and which are a waste of money. #1 - HHO Gas Conversions
Why save the best for last? Here it is!
Rating: 
Overall Cost: $50-150
These work by splitting water into "HHO Gas" which is basically Hydrogen and Oxygen separated from each other. Most people are reporting results of 20-45% increases in fuel efficiency. I've also personally tested this setup and got great results. These literally blow the other gas mileage devices reviewed out of the water. This is not a commercial snap on product, you will need to mount the water fuel cell under the hood somewhere, but that is really easy, it will be about the size of a coffee thermos. (I used zip ties actually, they work just fine!)
Where to Buy:
#1 - Run Your Car with Water
Best Price, excellent quality! This is a very comprehensive product that is easy to follow and understand. (ON SALE RIGHT NOW!)
#2 - Water4Gas
More expensive, but also a very high quality product.
#3 - HydroStar
This kit includes the same core information as the other 2, but is not near as comprehensive and is a little hard to follow.
-> ->All 3 of the above products have a 60 Day Money Back Guarantee!<- <-
#2 - Performance Chips
Pricey, Good HP Increase, marginal MPG Increase
Rating: 
Overall Cost: $400+
There are several Performance Chips available which can not only add horsepower to your vehicle, but also improve gas mileage. These work best with high performance gasoline engines and diesel engines. I have nothing bad to say about the performance chips, other than that they can be quite pricey and generally will require installation and dyno-tuning by a professional performance shop, which itself can be quite pricey. That being said, they DO work. Horsepower increase is the most noticeable with these, but they average around 3-5mpg increase.
Where to Buy:
Local "Offroad" Performance Stores
From the Bank to the Tank
#3 - Vortex Generators
Pretty Much a Gimmick.
Rating: 
Overall Cost: $20-50
Here is a product which I have actually had marginal success with. The "Turbonator" and similar knock-off products basically cause a spinning motion in your air intake hose, which in most cases allows the air to travel faster to the intake manifold. They are easy to install, and they do work to a certain degree, but in my tests I've noticed a maximum increase of 3 horsepower and no noticeable difference in gas mileage on average, which is far under the projected results. Because it's so quick and easy to install, I tested this on 5 different vehicles with similar results from each. It gets an E for effort, and 2 Stars only for the fact that I was able to get about 3hp out of it.
Where to Buy:
eBay
Turbonator.com
#4 - Mass Air Flow/IAT Module
A resistor in a plastic box, how high tech!
Rating: 
Overall Cost: $.10-10
There's not really a common name for these, but they are usually a very small box with a couple wires available on various spots on the net for $5-$15. The basic idea is that you will plug this into your Mass Airflow (MAF) sensor or Intake Air Temperature (IAT) sensor, and it will fool your cars computer into thinking that the air coming into the engine is colder than it actually is. This is done using nothing but a resistor that you can buy at Radio Shack for less than a dollar, and that's it! It DOES work in the sense that it fools your computer, but it doesn't improve gas mileage. Whether it improves power is debateable too.
Where to Buy:
DON'T! I still consider this a ripoff and a waste of time, but if you really want to try it, heres how to do it for pocket change (the cost of the resistor). (Trust me, you'll want that 5 minutes of your life back somewhere down the road)
IAT Mod
#5 - Fuel Magnetizer
I hear magnets cure cancer and chronic back pain too!
Rating: Overall Cost: $10
These inexpensive devices can be had for around $10, and will do absolutely nothing for your gas mileage. You'd be much better off putting that $10 into your gas tank. This is an extremely tiny gadget that you basically clamp onto to your fuel line and you should magically get better fuel efficiency. The idea is that perfectly placed neodymium magnets will align the fuel molecules, and "supercharge" or "ionize" them. Scientifically speaking, that makes no sense! Feel free to try if you're curious, but I don't recommend them at all.
Where to Buy:
eBay
#6 - Electric Supercharger
A good idea, in theory!
Rating: Overall Cost: $40-90
The electric supercharger is designed behind the idea of forced induction modifications such as belt driven superchargers or the popular turbocharger which is powered using exhaust flow. While the idea is great in theory, I have yet to see one with a motor capable of pushing air near as fast as the engine is already consuming it. In other words, these tend to actually SLOW down the flow of air into the engine which can not only cause worse fuel economy (not the best feature for a gas mileage device eh?), it can also damage your engine by causing a rich fuel to air ratio! Dyno tests on a 1998 S-10 V6 indicated a 7hp LOSS and an average loss of 3mpg. If I could have found a way to graphically represent a negative amount of stars for the rating on this, you'd most definitely be looking at it.
Where to Buy:
eBay
Feedback?
Spit it!
hiddenfuel wrote...
Fine Lens! Another type of gas mileage device helps you track mpg "on the fly" giving you instant feedback so you can fine tune your engine and adjust your driving style. Check it out here:
gas mileage devices
Posted September 06, 2008
Sweet Lens, I've been trying to get some great info on converting my car to run on water and Improving Your Gas Mileage. Finding a way to burn more cleaner fuel is a great way to cut the cost of high gas prices. I've have write some articles on the subject. You can check them out here. Improving Your Gas Mileage
Posted August 21, 2008
TopChuck wrote...
I don't know about others, but I do know that the magnet is a scam. As for water4gas, there has been a lot of talk about the water4gas scam, and everybody agrees it's controversial. The authors talk about HHO gas, but I saw this site that talks about the science of all of it. They say water4gas operates on something called Hydrogen Enhanced Combustion. The function of the water4gas electrolyser is to produce hydrogen which is directed to the engine. So the engine gets hydrogen rich gas which combusts rapidly, to improve the thermodynamics in the engine which inturn increase gaoline combustion. Don't take my word for it, check out the site itself on http://www.water4gas-scam.com They also show links to research from the US Air Force, MIT, statements from NASA etc etc Click this link water4gas to go there now
Posted August 14, 2008
StephenC wrote...
Good stuff. Good information.
Be an Unforgettable Teacher!
StephenC
Posted August 01, 2008
alicesy wrote...
Excellent Lens. I like the quality insight you have provided here about Gas Mileage Devices - What Works and What Doesn't!. Keep up the good work.
Please check out my Police Jobs Blog.
Posted July 25, 2008
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