Ratings & Reviews for Mechanic In A Bottle 8-oz 2-cycle or 4-cycle engines Fuel Additive
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.Shocked that it worked!
Would RecommendUsed in engine that sat outside over 2 years and would not start. Followed directions on bottle. Left overnight but still would not start. Tried again the following day (48 hours after adding to system) and started on 2nd pull and ran the full tank dry. Put in fresh gas and it now starts on 1st pull. I wouldn't have believed it but it worked. Worth trying before taking to a mechanic!
Verified Purchaser
Absolutely recommend! Works better than expected.
Would RecommendPleasantly surprised!
Verified Purchaser
Keeps the old engines clean ..
Would RecommendUse this product every spring in my 1947 Ferguson Tractor.
Verified Purchaser
na
Would Recommendeasy pour
Verified Purchaser
Really works!!
Would RecommendWorked well !!
Verified Purchaser
Just as good as Stabil
Would RecommendJust as good as Stabil
Verified Purchaser
Surging eliminated
Would RecommendMy snowblower was surging pretty badly this year. After less than one tankful with Mechanic In A Bottle, it started running smoothly. I was impressed to say the least. It saved me a $100+ bill at the repair shop for carburetor cleaning.
Verified Purchaser
Use it generously and follow the directions 👍
Used it before its amazing not sure how it works but it does.
Verified Purchaser
Helps with water in fuel
Would RecommendHad water in fuel issue, added this product. I got the vehicle started and I believe this also helped to clean the fuel system. Recommend it.
Verified Purchaser
Put in every tool you have with a motor
Would RecommendI love this product. I found it last year and it makes cranking your mower so easy the next year after being in storage all winter
Verified Purchaser
Mechanic in a Bottle
Love this product when gas has become stale
Verified Purchaser
Worked for me
Would RecommendThe engine was sluggish and hard to start, this solved the problem
Verified Purchaser