I have driven down to 'E' on more than one occasion, electronics showing '31 miles' to empty. Drives the CEO crazy if she is in the co-pilot seat. Since changing the plugs, I'm getting 20.5+ mpg [calculated manually] in mixed Atlanta commuter driving, usually on Kroger premium gas, so I'm well over 400m per tank. Best tank ever was 24+ on a late Fall highway run to SC and back ..... worst, towing a horse trailer back uphill from Florida, was closer to 15 .....

Good to hear RB.

The Lucas UCL might have broken up some injector buildup (better fuel atomization will produce improved burn cycles), and removed valve/combustion chamber carbon deposits (improves cylinder filling and reduces combustion chamber "hot spots", can cause early ignition, resulting in knock sensors triggering timing retard).

Don't know why I used "loose" in place of "lose" in my prior post. Brain fart???

Thats what I'm thinking as well. I run the Techron concentrate (12 oz bottle good for 20 gallons) every 6 months for the fuel system, but the UCL did seem to break up the combustion chamber a bit more and overall I do feel that it is especially helping to keep under my valve cover clean.

The weird thing was that one morning I had a nasty misfire upon startup after I dumped 10-15 oz of UCL in with a fillup for the first time, which had 2 cylinders misfiring, totally driving like shit for 10 mins till I got to my destination. I went back in, and started up again and the vehicle ran fine and hasn't happened since! I'm theorizing the UCL broke up some crap in my combustion chamber and something got stuck on an injector or somewhere within the cylinders but then was burned up and/or passed through at next fillup.

Been running great since then! Thanks for the recommendation, I'm also using it in my Scag mower, as well as my Triumph, in conjunction with intervals of Techron.

I mix 3oz of Lucas & StaBil per gallon for my 4 stroke lawn gear & Honda pressure washer, all my 2 stroke gear gets VP Racing Syn premix (zero ethanol). EVERYTHING starts with 1 or 2 pulls, even spring "first starts"!

Good man ^ I like the TruFuel 50:1 at Home Depot (ethanol free and used in my Redmax blower and trimmer) and 40:1 for my chainsaw. When its leaf season I just use the Redmax 2-cycle oil and 93 octane since I blow through a gallon every other week at that time, last tank of the season gets Stabil Marine (more ethanol prevention) and run until empty.

My Scag 52" Advantage is 12 years old with a V-twin Kawi FH500V engine and besides yearly oil changes, a spark plug change bi-yearly, air filter every few years and fuel filter, it starts on 1st or 2nd pull every time, always put 93 in it and Stabil Marine when getting ready to keep in shed for winter

Never drove pass E, But
I did drive by the Ex a couple of time. LOL

I even run the VP Racing fuel pre-mix in this.....

The Daiquiri Whacker Gas Powered Portable Blender

When I used it in the BMW Club area during the Sebring 12hr week, a few members commented how good the exhaust smells. I love the smell of shifter kart race fuel exhaust, even more when it's followed by a Margarita! :rofl:

^That is friggin hilarious LMAO

pumping gas is not fun for me. Unless I am on a trip I always let it get down near 12-14 miles. One reason is I always buy gas at the same Chevron station and I always fill it up. I do the Techron concentrate once in awhile and the gas has Techron in it.

I accept additives can make a difference in mileage and performance in an engine but because of the high temperature of the combustion chamber I am skeptical that a fuel additive can lubricate anything.

I don't worry about fuel pump damage. Last I knew an engine won't run on fumes. As long as the pickup is submerged you aren't pumping fumes. When the pickup is not submerged fuel pressure drops, the engine stumbles a few seconds and quits running.

Please explain the connection between opinions on additives for an X5 and stuff being used for lawnmowers and chain saws? Unless you are entering the chainsaw contest at the Lumberjack festival in Wisconsin or racing riding lawnmowers who cares? My chainsaw cuts down trees. My mower mows the lawn--