Model # 2-004-1

Internet #202580655

Store SKU #766881

Mechanic in a Bottle 4 oz. Synthetic Fuel Additive
0856202002027

Mechanic in a Bottle

4 oz. Synthetic Fuel Additive

$6.97 /each

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Product Overview

Fix poor or non-running engines with 4 oz. Mechanic in a Bottle. This synthetic fuel additive works in your power equipment with 2-cycle and 4-cycle engines. It removes all varnish in the fuel system without having to remove the carburetor, removes carbon deposits, removes water, reconditions rubber and plastic components, and revitalizes old fuel. Mechanic in a Bottle rejuvenates your equipment's fuel system so that it starts efficiently and operates in top condition.

  • Treats up to 2-cycle or 4-cycle engines
  • Quickly fix engines without removing the carburetor, avoiding costly repairs
  • Reconditions rubber and plastic components and rejuvenates rubber gaskets that may have dried out from ethanol
  • Keeps engine in top working condition, avoiding repairs and down time
  • Restores old, decayed fuel by breaking down carbon deposits and adding an octane booster to replace lost octane

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3 Questions14 Answers

Customer Questions & Answers

4 oz. Synthetic Fuel Additive
4 oz. Synthetic Fuel Additive

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This question is from 4 oz. Synthetic Fuel Additive
 
6 answers

use of this product in a 2 cycle engine

This question is from 4 oz. Synthetic Fuel Additive
Asked by
Buffalo
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October 28, 2015
do you have to add additional oil with this, or can this be burned as is, in a 2 cycle engine
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Asked by
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October 25, 2016
Answer: 
Yes.
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October 25, 2016
Answer: 
yes. Add oil where nessacery.
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October 1, 2016
Answer: 
Yes
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August 5, 2016
Answer: 
You still have to mix the oil and gas at the recommended ratios set forth in your owner's manual.
Mechanic in a Bottle and Ethanol Shield are fuel additives which are used in addition to your gas/oil mixture.
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Asked by
Washington state
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March 5, 2016
Answer: 
Yes, per manufacturer information: "Synthetic fuel additive works in power equipment with 2 & 4-cycle engines" from: http://b3cfuel.com/products/mechanic-in-a-bottle
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Asked by
Aromas, CA
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November 2, 2015
Answer: 
This does not replace the oil used in the mixture. This is added to it. Instructions on the bottle will direct you accordingly.
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Can you use this along with fuel stabilizer?

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March 6, 2016
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October 25, 2016
Answer: 
Yes
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Asked by
Montverde, FL
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October 1, 2016
Answer: 
Think it's to be used by itself. Don't think it would hurt to mix, but probably would do the job you expect. Follow the directions.
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August 5, 2016
Answer: 
Yes, you can use Ethanol Shield in your gas at the same time. This will provide both cleaning and stabilization for the fuel system.
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Asked by
Magee, MS
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June 28, 2016
Answer: 
Yes, Mechanic In A Bottle Synthetic Fuel Additive can be used with fuel stabilizer and or ethanol shield.
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March 10, 2016
Answer: 
Yes! I used 2oz of the mechanic in a bottle to a 32oz can of fuel. Ran that thru the motor.
Then put the remaining 2 oz in with 2 gallons of fuel along with a couple oz of stabilizer and it's GOOD TO GO! This stuff WORKS!
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Can I use it in a motorcycle

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March 15, 2016
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August 5, 2016
Answer: 
Yes, both Mechanic in a Bottle and Ethanol Shield can be used in motorcycles and all other gasoline engines.
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Asked by
Magee, MS
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June 28, 2016
Answer: 
According to the printed directions--Mechanic In A Bottle Synthetic Fuel Additive can be used in any 2 or 4 cycle gasoline engine.
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April 9, 2016
Answer: 
YES, WORKS IN ANY SMALL ENGINE
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Customer Reviews

4 oz. Synthetic Fuel Additive is rated 4.7 out of 5 by 42.
Rated 5 out of 5 by from The product ACTUALLY WORKS! I've been using the standard off-the-shelf auto store stuff forever w... The product ACTUALLY WORKS! I've been using the standard off-the-shelf auto store stuff forever with minimal results. I stumbled across MIB at Home Depot while buying pre-mixed gas for my leaf blower that was clogged with ethanol corn juice remnants. Following the instructions on the bottle, the engine ran as good as new and I've used it for two seasons since then. Truly amazing product I recommend to all my friends. These are my words and this testimonial is not written by the manufacturer or the retailer!
Date published: 2016-12-21
Rated 5 out of 5 by from Okay, I’m convinced… I put 1 oz. of this in each of my gas-powered yard care machines and they al... Okay, I’m convinced… I put 1 oz. of this in each of my gas-powered yard care machines and they all run better than they did before I ran this through the fuel system. The effect of this product was especially noticeable on my weed trimmer which only gets used rarely (maybe 2-3 times a year). I had all but given up on this machine as it is always hard to start. It was a cheap, basic model when I bought it and I’ve never really cared for it. But after putting 1 oz. of this product in the tank, it started after only about 10 pulls which was amazing (I had given up trying to start it and was basically waiting for permission from my wife to let me get a new one). After running the engine each of the last three days, it now starts in 2-3 pulls and runs great. I will be running this product through the fuel system every year from now on.
Date published: 2016-11-27
Rated 5 out of 5 by from My snow blower would not start, despite putting in a new plug, new fuel and new fuel line. A fri... My snow blower would not start, despite putting in a new plug, new fuel and new fuel line. A friend mentioned that sometimes ethanol can clog a carburetor. I searched the internet and found this product which had reviews that were almost to good to be true. So, I went to central tractor and bought all they had except one. One pull starts since ! That was two years ago, now mechanic in a bottle is in all my powered tools.
Date published: 2016-12-10
Rated 5 out of 5 by from It Really Works! I had let my chain saw, weed trimmer and blower sit all winter with fuel in them (my bad!). I bought a bottle of MIB followed the simple directions and all 3 started right up. Wish I had found MIB sooner and it would've saved me about 2 days of work and a blistered hand trying to fix these tools. Buy yourself a bottle!
Date published: 2016-10-01
Rated 5 out of 5 by from Great stuff! I can't believe this worked so well! My weed eater started to bog and eventually needed half choke to run. Cleaned the air filter and everything else, no help. Put a little of this in the tank and ran it a few minutes. Repeated the next day. Day three it ran like new, no problems since.
Date published: 2016-11-06
Rated 5 out of 5 by from I first used MIB two nights ago and the engine started and before I could turn it off it died, I ... I first used MIB two nights ago and the engine started and before I could turn it off it died, I then put gas in it and let it sit for the recommended 4hrs. It wouldn't start again, the next day I bought two more bottles, drained the gas again and put it another MIB bottle this time it ran for about 10 seconds before I could turn it off, I waited about an hr before put gas in it and it wouldn't start, I waited for 4 hrs and it wouldn't start then I tried another bottle of MIB ..it wouldn't start, tried a bottle of stabilizer as well, it wouldn't start then I pumped my bulb 9 times, it started!! I let it run and added more gas, it sounded horrible and it was smoking as it was cleaning out the carburetor. However in the end it was purring like a kitten and running as if it were new again! Don't fret, if you pull a few more times or pump your bulb it will likely start, That is the mistake I made, i only pumped it the three times I was instructed to, to start the engine. Thanks MIB! You saved me having to contract a company to plow my driveway! :)
Date published: 2016-12-17
Rated 5 out of 5 by from amazingly good, we use it in our riding mower The used to have trouble with starting our riding mower. We also experienced it almost dying when cutting high grass. Now since we have been adding this to the fuel tank the mower functions like a dream!
Date published: 2016-10-11
Rated 5 out of 5 by from Awesome stuff! Worked as intended. Generator refused to start after old gas was left in it and separation occurred. Poured this bottle in and let sit for a few hours. Sprayed in some carb spray and started right up!
Date published: 2016-10-05
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