Has anyone heard of a device called Fuelstar? www.fuelstar.com

The web site says you can run unleaded instead of super and still get better gas milage and lower emmission and runs engine cooler and better for your engine .. and .... and ....... !

I am thinking of buying this and putting it one my 88 260e. Just wondered if someone else has had any experience with it.

I drive 700 miles a week and need to cut my gas bill or I am going to have to get a new more efficent car if the price of gas keeps going up.

Broke in Houston
Anthony

Hmmmmm. High fuelprices always seem to bring out the Nutcases & their 100 mpg carburetors.
Do you really think if these things worked ( cleaner emissions, better mpg., lower grade fuel required ), the OEM's would not use them ?

__________________
2007 C 230 Sport.

Look into buying a diesel. Nice MPG, a w123 or w126. w123 is not a luxury (have 300D Turbo) as the w126 (own 300SE) the w123 saves me a lotta gas...

I got a pyramid that sits in my trunk over the gas tank that energizes the fuel and it gets me 68MPG. I put my golf clubs next to it and I get an additional 60 yards on my tee shots.

I'll second that !

Most of those gizmos and gadgets don't really work.It looks like this one is another of those inline fuel(ionizers,stabelizers,molecular structure of fuel improvers).They pop up every few years,and they're all just magnets.Whenthey do work,what's actually going on is the magnet is attracting the rust particals in the fuel system and causing a fuel restriction.Which leads to you'r engine running leaner.Slightly leaner fuel mixture can increase you'r mileage and power.But you'll burn you'r exhaust valves out and cause premature wear on the engine.Vapor carburators actually do work and give unbelievable fuel mileage.100-200 and more miles per gallon on big full sized cars.But you need pure,raw gasoline for them to work long term.I believe all modern gasoline has oil that has been molecularly cracked to create more gasoline mixed in.You try vaporizing the cracked oil,and you get a tar residue left over.These carburators worked great back in the 1920's and 30's when you bought raw gasoline with no addatives or fuel cracking to increase gasoline production.And even though they did really work back then,the car makers never installed them.Yes there still are super high effiency fuel systems around that do work with modern fuel.And the car manufacturers know about them,because they own the patents by hostile acquisition.THIS is not an urban legend.They could be building 300 mpg cars today.I don't know why they don't.But I personally know of at least two carburator designs belonging to one of Americas big three auto makers that are real.And the inventor of one of them who I used to know personally was threatened to sell his patent to them or he and his family would disapear.Yes he sold to them,but he doesn't dare ever tell anyone about his design.I knew about it before the patent.

"You'r" (sic) just making this stuff up as you go, right?

__________________
1989 300 SEL that mostly works, but needs TLC

No, it's all true. Really. Time to go fire up the Flux Capacitor in the Delorean.

There is a long thread in the archives on this from a while back, take a look.... talking about premium vs regular and probably some talk about "wonder gyzmos" to get you to 54 mpg

__________________
1995 E320 smoke silver / parchment

I've heard this story for at least 23 years, and I'm less and less open-minded about its veracity. Patents expire after 17 years. A savvy business person can profit from it's exclusivity for up to 20 years. Why hasn't something like this surfaced by now, and with the internet why aren't there bootleg plans available for the DIYer? Heck, everything else is bootlegged on the internet!!! I don't buy it.

__________________
95 E320 Cabriolet, 159K

Know where I can get a Mr. Fusion rebuild kit?

__________________
1989 300 SEL that mostly works, but needs TLC

I recently installed a phased-trionic sub-molecular inversion reactor. Fits in the trunk near gas tank of course.

Instead of filling the tank with gas, one simply fills the tank with water from the public water supply along with 8 oz. of hydrogen peroxide and 4 oz. of sodium benzynol. This mixture is drawn into the reactor and the output is 95 octane gasoline.

Gas mileage is a little better than with conventional gasoline...about 25mpg in my case, but the cost of operation has been greatly reduced.

The reactor was developed at the University of Schlitterbahn by Professor Hans Dorkmunder and Professor Renaldo Geech.

They'll soon be available at Wal-Mart for $79.95

__________________
'91 300-SEL

A restriction won't lean out the system much on an EFI engine, which pumps far more fuel out of the tank that it injects, and cycles the unused fuel back to the tank. A restriction won't lean a carburetor unless it really slows down the flow to the bowl, and again most pumps can pump a lot faster than the bowl can drain.
Yes, it is unbelievable fuel mileage. Modern gasoline engines are about 33% efficient. A big full sized car may get 30mpg, so with a 100% efficient engine it could at best get 99 mpg! No carburetor will increase engine efficiency that much.
Gasoline starts in the refinerey as crude oil. The 'refining' process 'cracks' the long chain molecules of the crude oil into molecules with shorter chains to become your "pure, raw gasoline." It is then blended with detergents and octane boosters to make what we know as gasoline.
As stated above, cracking is what produces the gasoline. It is not brought up 'pure' from a well...
Because they can't violate the laws of physics? Because nobody would buy or ride in a 1,000 pound, 5 horsepower car that had a top speed of 10mph downhill with a tailwind.
All of the designs have to mix air and fuel at a 14.5:1 ratio or it won't burn. How they do that is governed by physics too...

Apologies to all for Off Topic response. I feel better now...

Best Regards,
Jim

Okay, I'll let you in on my secret.
I bought a fuel-saving device 6 months ago & ever since then I have to remove gasoline from my overflowing gastank, twice a week.
Boy, that overflow sure ruins my waxjob.

__________________
2007 C 230 Sport.

On a more serious note, long distance truck drivers are getting more than a bit peeved at "NASCAR dads" attempting to "draft" them on the interstates to save gas.