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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

Saves me money, give it a try!

Would Recommend

I use this when my pressure washer starts a little rough, or when I notice it struggling or idling rough. Excellent product!

October 18, 2023
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Note only for fuel issues

Would Recommend

Worked after using

August 13, 2023
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Put in for frist use of summer

Would Recommend

It worked just like it said it would

August 1, 2023
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Leaked all over my car's interior

Would Not Recommend

The bottle's.paper seal was compromised.and it leaked all over the Lowes bag, newly purchased trimmer string and erased the ink on the receipt and the best, it ruined my car's carpet.

May 4, 2023
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Easy to use and great fix

Would Recommend

I had a lot of old gas in my mower tank, so once that was cleaned out, we put new gas and this in and my mower runs great now.

April 10, 2023
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This stuff just works!

Would Recommend

Bought this for my snowblower which was bogging under heavy and wet snow drifts. The engine was running rough so I thought I would give this a try before replacing the spark plug and cleaning the jets in the carb out. This stuff flat out works terrific. Poured 1 oz in a gallon of fresh 92 octane gas, let it run for 5 minutes and then turned it off to sit overnight. Fired it up the next morning and it runs like new. The additive definitely works.

April 1, 2023
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Worked great twice!

Would Recommend

Works great on clogged carbs. This is the second time I have used this product to clear carb and bad gas that was keeping engine from starting. First was on a brand new power washer that would not start. Followed directions and used some new gas and it started right up. Second was on my son's recently purchased ATV that I suspected had sat with old gas for a year. It clear up the issue in about 15 minutes. I got a half start and then a full on the second try. If you don't want to remove your ...

February 27, 2023
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Didn’t work.

Would Not Recommend

Bought for snow blower that wouldn’t start. Didn’t work.

December 27, 2022
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OUTSTANDING PRODUCT

Would Recommend

Followed the directions which helped clean the carburetor and allowed me to start the snow blower right away.

December 19, 2022
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