fuel system additives

What have you found the results to be over the period of time that you have been using the additives?

Do you believe that your vehicle has performed better?

Have you spent less money on fuel?

yes, that's why it's mandated by federal law.

there is a federal minimum. but different brands vary from that, in some cases up to five times the minimum.

if you're having injector problems, yes. if you buy cheap gas, most definitely. once every 3 months or so is fine.

the after-market cleaning/flushing sold by monkey-lube outfits /is/ unnecessary and it /can/ cause problems just like they say. but adding detergent to your gas sufficient to clean injectors, as is frequently cited here when people have "flooded" start problems, is a good idea and it doesn't harm o-rings or seals.

Nothing but 'snake oil'. As far as I know there are no auto manufacturers who recommend or suggest their use.

but additives are vital. the car manufacturers that "don't recommend or suggest their use" /do/ however seem very anxious to ensure that crappy gas that gums up fuel lines, leaves deposits in injectors, fouls intake valves and carbons up the combustion chamber is not misinterpreted as being /their/ fault.

Hi, Be careful, you may destroy catalytic converter.

wow, what is this thread??? an urban legend competition?

I use STP gas treatment. I maybe get another mile or twoper gallon out of that tank, so the cost is a wash. I also heard once a few years back that if you floor your vehicle it will "blast" the injectors clean. Is this true or myth as well?

For some reason, the 'Top Tier' labels on the Shell gas pumps have disappeared in this area (south of Chicago). I don't know if this means that Shell dropped the program, or just in this area, or they just don't want to keep answering 'what's that sticker on the pump' questions.

myth. injectors are constant pressure. all max injection does is make them open for longer, and that's not going to clear anything multiple short injections won't do.