Rep Power: 812

all i know is i'm getting about 42mpg with mostly highway miles using lc and fp. thats pretty amazing considering i have intake and catback exhaust.

 
Rep Power: 319

I will, although it will be some time. I plan on doing the same with my '06 Civic once all the break-in stuff is gone. that car make actually get done first since it gets so many more miles.

 
Rep Power: 0

I've been using FP but my mileage isnt that great. I think I need a new primary O2 sensor, keep haveing a code going on and off, just hate to buy a new one when it's off half the time.

 
Rep Power: 336

Same here...I have been using the product(FP and LC)for about a month now....NO CELs

actual mileage has acutally dropped....I am getting 33-34 MPG...instead of 35-36MPG....I am not happy but will continue to use and if it does not improve I will return them....

 
Rep Power: 812

maybe you guys have some other problems. cause my engine feels alot better using lc, and mileage i've never gotten my 42mpg without addatives.

 
Rep Power: 315

Since you have an EX Auto, you normal estimated is 37 if i'm not mistaken!
Going to 42 is over a 10% increase in mileage. I have a lot of years with additives (from motor honey to StinkeyTurtlePiss) and oils and have never seen 3 to 4 % increase?

 
Rep Power: 812

ya before using those addatives, i could barely get 38mpg usually just 34 all highway. i'm loving the gain altho in town driving is still low 20s.

 
Rep Power: 263

the only reason i bought Lucas was because my friends (all have 5.0 stangs) recommended it since they all used this in their cars. So i bought it and decided to try it out. Im a total Marvel Mystery Oil guy. I swear by that stuff, have used it in my past 2 cars and the civic. dont really feel a difference, but it doesnt give you more MPG or HP like other brands say, just cleans the internals of the engine, prevents valve sticking, cleans fuel pump and dissolves liquidated junk in the gas tank. Great stuff if you had a car sitting for a while, just add half a bottle (1 pint) into about 4 gallons of gas, drop into an empty gas tank and start the car up, youll notice all the exhaust smoke being BLACKER than BLACK and after a while itll go normal again... cleaned out all the Sh*t in the engine and lines.. good stuff.. its been around for about 100 years


and i get 38mpg/hwy and 34/cty w just MMO and Castrol Syntec 5w-20. And look at my mods. so im guessin i have to say that additives really didnt do much for me in the long run

 
Rep Power: 336

Yes, I agree that it feels better in terms of response and smoothness..I also noticed black smoke coming out from my exhaust...

but I only used it for about a month and 1/2...total milage is about 2000 miles...70 highway/ 30 city...My all city is around 30-31mpg

When I put stock wheels on...I could get 37-38 mpgs consistently...

35-37mpgs per tank consistently with 17 wheels I feel confident that my car is running normal...I drive 70+ at highway speed....

Now this number dropped by 1 or 2...I just want to know if this is temp or not....like I said I've been using the product for 1 1/2 month with 2000 miles racked up...maybe not long enough...?