0856202002027

Mechanic in a Bottle

Model 2-004-1

Internet #202580655

Store SKU #766881

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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Customer Questions & Answers

3 Questions9 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
 
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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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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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Can you use this along with fuel stabilizer?

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March 6, 2016
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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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use of this product in a 2 cycle engine

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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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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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Customer Reviews

Rated 4.7 out of 5 by 30 reviewers.
Rated 1.0 out of 5.0 by Mechanic in a Bottle Synthetic Fuel Additive made promises it has yet to keep. I could not get my chainsaw to run well after loaning it to others where it was used with ethanol/gasoline/lubricating oil mixes. I took it to two different small engine repair shops where it was tuned up, sharpened and adjusted. The saw would start easily enough but ran rough and could not develop much power for cutting. The 4 ounce Mechanic In A Bottle Synthetic Fuel Additive promised to quickly fix this engine without having to remove the carburetor, to rejuvenate rubber and plastic components, and keep engine in top working condition, avoiding repairs and down time. I carefully followed the directions provided and let the additive work overnight. I mixed fresh, non-ethanol additive gasoline with a new 2-cycle fuel lubricant to give the saw the best chance at recovery. When I started the engine it again ran rough and would not saw through a 6-inch log without bogging down and coming to a stop. I returned this chainsaw to the repair center and bought a new one. June 28, 2016
Rated 5.0 out of 5.0 by Works great! I was having problems with my Stihl string trimmer (my own fault, didn't store it properly over the winter), wouldn't start. I followed the directions and drained the tank, added 2oz of MIB and after priming it in and pulling the cord to run it into the fuel system the thing actually started up, I didn't even need to let it sit, just let it run a few minutes on what was left in the fuel line. Put in fresh premix and I was good to go. Fantastic stuff! June 23, 2016
Rated 5.0 out of 5.0 by Honda EU3000is generator sputtering at high rpm Honda EU3000is generator sputtering at high rpm, researched solutions alternative to rebuilding carb. Found claims regarding performance of this product and thought, "What can it hurt to try?" I was very surprised, at first did not make much of a difference, but after following manufacture recommendations my EU is running like a dream, no sputtering at high, or low, rpm. This product actually works and is at least worth a test for $6 March 5, 2016
Rated 5.0 out of 5.0 by Works!!! My 2-stage snowblower wouldn't start. I added some Mechanic in a Bottle to the gas and got it running. Glad I found this product and saved a service call! March 28, 2016
Rated 5.0 out of 5.0 by Glad I tried it I had a snowblower that was over 10 years old that I basically did nothing from a maintenance standpoint and I really thought it caught up with me. I could not use the snowblower without it shutting down and then couldn't start again. I dumped the whole bottle when the tank was about 1/3 full and let ran it till it ran out of gas. Filled up the tank and was golden. I really don't understand why it was so effective but it worked lol! February 8, 2016
Rated 5.0 out of 5.0 by Great product! I was skeptical when a friend recommended this product to me, and wondered how it could possibly work as well as he described. After running an entire bottle through my sputtering and stalling lawnmower, my mower has been running "good-as-new". Mechanic in a Bottle saved me an $80 carburetor rebuild, and I highly recommend it. GREAT PRODUCT! February 20, 2016
Rated 4.0 out of 5.0 by Bring the life back to your gas powered equipment Needed an additive to help get my saws and lawn maintenance equipment running their best. Added a little to the fuel and ran each piece of equipment for 5-10 minutes. I started to notice smoother running, better throttle response and easier starts. This is not a cure-all product or a way to repair mechanical damages to small engines. Further adjustments to my equipment may still be necessary to ensure the best operation possible. I’m using this additive in all my ongoing fuel mixes. November 13, 2012
Rated 1.0 out of 5.0 by Mechanic in a Bottle did not work for my generator Tried this product in my 3 year old generator. I run the generator every 3 weeks and let it run out of gas each time. It was running very rough and tried using this product along with changing the fuel and replacing the spark plug. It did not make it run any smother. Decided not to mess around and brought it into a qualified mechanic. January 18, 2016
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