What is everyones input about using gas addatives? Is it worth the money and which ones work the best. Or will using the premium gas do the same as any gas addatives do? My cousin has a Dodge Neon and when she is at a stop light the cars idles lower then normal the last few days. We bought a bottle of Lucus and put in and she was wondering if there is anything else that is better. And, what is the point of the directions on the addative saying that its best to use almost all the gas in the car so it will work its best..I was just curious why you have to run the gas tank down to almost empty for it to work...

I never use additives. Don't see the value.

the 02 neon i had didnt have a fuel filter so in that situation i think there may be some benefit to injector cleaner. i havent heard much good about lucas though. i run seafoam cleaner in a few things

About every 1k I run a fuel cleaner in the tank of my bike, and about every 5k for the truck/car. I do this because of the ethanol content in fuel now. The older engines of the truck/car don't like it and the bike REALLY doesn't like it.

I've used the Lucas fuel injection cleaner for years in both cars, and both still have their original injectors so far.

The most engineered injector cleaner is made by Chevron (in their fuel) a product called Techron (techroline) a bottle of Thecron Concentrate is available and is an excellent product. I use a bottle of this in a half a tank or two bottles to a full tank on long highway drives twice a year. Gets it clean big time. Available at Chevron stations & Walmart?
http://www.chevron.com/products/cana...tives/tcp.aspx

I use Lucas As well but use it mildly/occasionally. Do not want to plug up fuel filter.
http://www.lucasoil.ca/products/prod...&cat=HeavyDuty
As above get 3mpg better often.

Also ensure your engine oils are meeting the new standard of GL5. Much more engineered and also help in fuel mileage. I use Mobil 1 synthetics and always check for ILSAC GF-5 Standard.
http://www.gf-5.com/the_story/performance/

I usually use a stabilizer/cleaner in the spring and fall when they start changing to the winter/summer blend gas. It might just be overreacting, but I don't want to take a chance. My parents' 1995 Lumina had to have the injectors replaced one year because of some bad gas when they were changing to the winter blend one year.

if you want to clean up the injectors, you can use tolulene. outlawed in nearly every state, but it is what they put in race gas.

Travis that is good that you use a stabilizer. I want to mention that ethanol fuels attract moisture, and in fact will rust out metal gas tanks eventually.
Since you are also in Canuck land, here is a good fuel sta-bil marine product that is specifically formulated for ethanol fuels. It also make storage of fuel good for 1 year. Sta-Bil Marine Formula | Canadian Tire
Come winter I also use a gas line antifreeze with a water remover, this one often goes on sale and I have a pack in each vehicle ready before winter.
MotoMaster Premium Gas Line Antifreeze, 6-pack | Canadian Tire
On the topic of fuel injectors I want to talk about about dirt coming into your tank from the pumps over the years. Anyone who owns a older motorcycle and can see the bottom of the tank when empty, knows what I am talking about. The dirt and tiny rock particles that some how made it past their pump filtration & came complimentary with your fuel, can sound like rocks in a coffee can, no joke.
So in your car change your fuel filter once every 18 months!! Most neglect to remember that this little important filter, that does work hard at keeping your injectors clean from foreign particulate, should be changed as regular maintenance, just like your spark plugs.
I would also like to mention that servicing the throttle body & air intake & filter clean is also very important. The dealer can perform a complete emission cleansing but be sure to know if they are servicing both the throttle body & injectors etc. They use pro chemicals that do work to restore the flow properly in injectors and gets attached directly to fuel rail & run.

the best way to clean your inujectors is to hook the car up on a decarbonizer machine.