Are there fuel additives that will increase my gas mileage?

I'm getting 20-some miles per gallon, but the prices at the pump really hurt. Asked by bochman 48 months ago Similar questions: fuel additives increase gas mileage Environment > Energy.

Similar questions: fuel additives increase gas mileage.

No Well, I won't make that an absolute no. It depends on how old your car is. If you own a car that was built in the last 15 years or so, it has programmed fuel injection.

A computer monitors a number of sensors located at various points in your intake system, the engine itself, and the exhaust. The computer knows when the engine is cold, and delivers the extra fuel it needs to warm up. When the engine is at operating temperature, it monitors the amount of oxygen in the exhaust gas to adjust the air/fuel ratio to its ideal proportions.

This is called the stoichiometric ratio. For a gasoline engine, this is 14.7 parts of air for each part of fuel, by weight, and the computer adjusts fuel delivery to maintain this ratio. No fuel additive will have any real effect on it.

The stoichiometric ratio for different types of fuels varies, but when you consider how these things are sold - in 8-oz bottles, for example, anything you'd add like this would have a negligible effect on the composition of what's in a 12 to 20 gallon tank. This being said, there are some fuel additives that can help to clean injectors that have gotten fouled with age. This will make them work better, and might save you some gas.

However, if your injectors are fouled, it's probably time for a general tune-up. Finally - your gas mileage will vary with the kind of driving you do. Slow down, if you can, or take a different route to work, or leave at a different time, to avoid some of the stop and go traffic that kills gas mileage.

Sources: HowStuffWorks. Com .

There are no additives that will increase gas mileage There is not an additive that will consistently improve gas mileage. You will see claims all over the place that such and such additive will improve your gas mileage x%...the problem is the only people making these claims are the additive manufacturers and people selling these products. All third party tests show fuel additives simply do not work.

There are things that you can do to improve gas mileage. 1) Change/optimize your driving habits. Accelerate slowly, do not speed, the closer you are to 60 mph the more efficient your car will generally run.

When you know you are going to come to a stop soon....coast down in speed...do not accelerate so you then need to hit the brakes hard. 2) Inflate tires properly. Tires lose pressure over time, and underinflated tires burn up the gas.

Keeping tires inflated to the car manufacturer's recommendations will make a gallon of gas go farther, but it makes tires last longer and improves safety, especially for SUVs and trucks. 3) Keep you air filter clean. 4) Do not have unnecessary weight in your car.

The bowling ball and 100 pound bag of kitty litter you have in your trunk...take it out...it burns fuel to tow it around. 5) Use synthetic oil instead of conventional. Synthetic oil is said to improve gas mileage up to 2% but...the problem is Synthetic costs much more than conventional oil and the saved gas mileage would not make up the cost difference.6) Combine errands...instead of several short trips...try to wait and do everything in one longer trip.7) Maintain your car properly.

A good running car is a more fuel efficient car.8) Consider a Gas Credit card...can get up to 5% back on gasoline purchases. http://money.cnn.com/2006/05/04/pf/saving/willis_tips/index.htm Related articles: http://www.mnsu.edu/news/read/?paper=topstories&id=old-1087707600 http://www.ftc.gov/bcp/conline/pubs/alerts/fuelalrt.shtm http://autotechrepair.suite101.com/article.cfm/how_to_improve_gas_mileage http://www.getrichslowly.org/blog/2007/05/30/how-to-improve-your-gas-mileage-23-top-tips-for-better-fuel-economy/ .

More Fuel... less alcohol There is one fuel additive that decreases your fuel economy in cars that have fuel injection systems with closed loop oxygen sensors used to adjust fuel to air ratios on-the-fly... that is Ethanol alcohol. Where gasoline has an optimal burn rate at about 14.7:1 (parts gasoline to air by weight) Ethanol is about 19:1. So even a 10% mix of Ethanol reduces your fuel economy by about 5%.

So if you can find a station selling pure gasoline you will notice your fuel economy go up just a bit. Running any alcohol in a car not designed for it is bad... they set the limit at 10% with the idea that the damage this causes to rubber seals, carburator floats, rubber or aluminum fuel lines will be so gradual that your car will be worn out before the damage becomes apparent. Otherwise... the only other thing that has promise is the Fitch Device... a catalyst that changes the nature of gasoline slightly has been proven on the dynometer to increase rear wheel horsepower slightly and fuel economy quite measureably.

You can also go to a lower (and cheaper) octane rating in your car with this device. Sources: IMHO .

Short answer - NO Everytime gas goes up or there is a shortage, charlatans come out of the woodwork with all sorts gadgets and gimmicks for increasing fuel mileage. When tested in the lab, none produce the claimed results and any that work at all don't increase it enough to justify the cost of the product. Your best bet is to keep the car tuned properly, keep the tires properly inflated and reduce the weight by cleaning out the junk in the trunk.

Your only other options would be to drive less (by grouping errands, carpooling or use other forms of transportation) or to trade the car for something that gets higher mileage. 63swc's Recommendations The Gas Mileage Bible Amazon List Price: $16.95 Used from: $10.66 Average Customer Rating: 5.0 out of 5 (based on 2 reviews) Improving Fuel Economy: Money In Your Pocket Amazon List Price: $5.95 Used from: $3.32 .

No If there were, they'd be common knowledge.

" "what cars get the bes gas mileage and has highest safety rating?" "can 2 ounces of 2cycle oil per gal. Of diesel really improve fuel mileage? " "Does using more expensive gas like Shell or Chevron give better gas mileage then cheaper gas like Arco?

Will a flex fuel engine (e85) running on a regular gas/ethanol mixture (e10) get the same mileage as a standard engine.

Can 2 ounces of 2cycle oil per gal. Of diesel really improve fuel mileage?

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.

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