Anyone have ever tried them? Brand? Mileage? 2008+ feedbacks.

 

lucas is all i ever use

 

I've used them. You generally don't notice any change. Especially with a new car like the 2 you have - there's pretty much a 0% chance that your fuel injectors are dirty/clogged.
It's not going to hurt anything. So if it gives you a bit of "peace of mind" to do it, definitely run it. It's pretty cheap and easy.

Brand-wise, I trust Sea Foam the most.
Also STP, because I grew up watching Richard Petty and sometimes marketing does work.

 

If u are using quality fuels (top tier), you wont ever need any. Don't waste the money.

 

they are also upper cylinder lubricant...i use lucas every couple months...buying gas is more a waste of money than buying a $5 bottle of additive a couple times a year...i'm sure most people spend $20 a year on dumber things.

 

i know this is an old thread but i just wanted to share my experience so far..i just grabbed this:

http://www.canadiantire.ca/AST/brows....jsp?locale=en

and i put half the bottle in my fuel tank with 1/2 tank then i went to the gas station and poured the other half of the bottle in and filled up to 3/4 my tank..what do you guys think? should i have filled up all the way since the bottle says "treats 25 gallons"?

any thoughts would be appreciated

hopefully my car starts running smoother and my mpg goes up even by just a bit..

cheers everyone!