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8-oz 2-cycle or 4-cycle engines Fuel Additive

Ratings & Reviews for Mechanic In A Bottle 8-oz 2-cycle or 4-cycle engines Fuel Additive

4.6
199
Review
 4.6 out of 5
199 Reviews


89% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this fuel treatment for reviving small engines that wouldn't start after storage or fuel degradation. Most report engines firing up instantly after just a few pulls, with many avoiding costly carburetor cleaning or replacement. Reviewers consistently describe improved smoothness, full power restoration, and sustained performance. Several use it as preventive maintenance for seasonal equipment. A small number report no improvement, typically involving severe mechanical damage or improper application. Overall, customers strongly recommend it as a practical, cost-effective solution for engine maintenance.

Customer review summary generated by AI, including incentivized reviews.
199 Customer Reviews

I've used it several times to clean fuel gum out

Would Recommend

Helped me get a chainsaw started after a year of non use.

December 8, 2022
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Money saver

Would Recommend

How well it works, only a few minutes and the engine was back to normal.

October 17, 2022
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Good product

Would Recommend

Tried it on a poorly running blower. Unfortunately the blower had a mechanical problem, bad part, and was beyond capabilities of product. Also used in mower and it runs smoother.

September 16, 2022
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Good for cranky lawnmower

Would Recommend

Prior to using this, the lawnmower kept conking out. This fixed it right away.

August 30, 2022
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Does not work as advertised

Would Not Recommend

Mfg claims it cleans carburetors without the need to remove the carb. I followed the directions and it did not work. On a 2nd attempt, I again drained all chemicals from the fuel system, performed a second treatment with additional time, and found this product did not clean the carb (engine would NOT start). As a last result, I brought the engine to the Lowes repair center. They said the carb only needed a light cleaning and were not surprised to hear this product did not work. I highly recomm...

August 9, 2022
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Good product does what it claims.

Would Recommend

This product did exactly what it claimed to do. My chainsaw would not run with any power and after running a tank of fuel with this added to the fuel it now runs with full power and starts more easily.

May 21, 2022
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This product works!

Would Recommend

It really worked. Easy to use. Mower is running like brand new

May 20, 2022
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