Alright I have heard about Luca's Injector cleaner & many people are pretty satisfied with it(big & small bottle). But I got a question based on the small bottle.
It says it treats UP TO 25 gallons of fuel per bottle, As we know Civics have anywhere from a 10.9 gallons to 11.7 gallon fuel tank(just kinda guessing there).
Now let's do alittle math:

(rounding off)12 gallons x 2 = 24 gallons

So...Would that mean I can put 1/2 a bottle of Lucas in the tank & it would do it's job?....OR...Would I have to put the whole bottle in there?

I'm asking because for a little bottle that cost $5.99 at Autozone & $4.99 at Walmart..it's worth saving the money to use 1/2...that is..if you could.

 

Meh, I just throw the whole bottle in when I fill up and call it done.

That's just me.

But I usually buy it when it's on sale, 2 for 1. lol.

 

Agreed, I do the same. Your injectors aren't gonna get too clean B-)

 

Just an update for anyone that stumbles onto this thread in a search.
About 2 months ago I brought a small bottle of Lucas & put 1/2 the bottle in(about 4 oz for 10 gallons of fuel). I really didn't notice anything great about it, worked just like my STP gas treatment & Gumout gas/injector cleaner that I usually buy(good results but never great).

So I give Lucas a rest till last weekend when Walmart has them for $9.99 for the BIG bottle. I brought it...they say put 4 oz for every 10 gallons..instead I put about 8-9 oz in on a full tank. Didn't notice anything right away(leaving the gas station), but the next day my car ran so freaking smooth & quiet. I was just breaking the 100 mile mark on the dash & my gas needle was just getting off the "full" mark.

I guess Lucas works wonders...Not saying it'll fix your whole engine but it'll make it run smoother. Why don't Lucas advertise this stuff during sports programs..they would make a killing!

 

I wonder if it works better than SeaFoam or not.

 

i prefer seafoam, but i do use lucas oil treatment

 

What's the difference between lucas and seafoam

 

This stuff works wonders. My car was running so smooth after I used some. I kind of used this quote as my guide when I was putting it in.

I used about 8 ounces. lol but I was wondering how often I could use this stuff. Every fill up or every so often fill ups?

EDIT: I was also wondering if having a short ram intake makes any difference in mpg.

 

I wouldn't put it in more often than like every oil change cycle stan. It won't hurt your engine, but you won't really be getting a huge benefit from it - for the same reason washing a clean counter doesn't really make it cleaner lol. On the bottle there should be a recommended interval for reference.

Personally I like the Lucas treatments, they work great and as far as preventive maintenance goes, you just can't beat the price.

*edit* Having better air flow can indeed help with average mpg, as well as increasing overall performance. So long as both the intake and the filter allow for higher rate of clean airflow, there will be an accompanying increase in performance (not always highly noticeable)

 

Lucas is much better. SEAFOAM as I have said before in other threads melts converters. Lucas also lubes the fuel pumps anytime you can help cool & lube these electric in tank pumps you extend their life.