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

Check with your repairman first.

Didn’t seem to work! Maybe fouled the fuel and filter.

Mower won't even stay started now

My mower was running rough (I think the gas I used was old), but was running. A week ago I used this product as directed. Let my mower run for over 15+ minutes (as directed) and I could hear it running smoother and smoother during those 15+ minutes. So I thought I was golden. Now a week later, on next use, mower won't even stay started for more than 10 seconds. It at least would run before using this. Very unhappy!

It works!!

Poured some in my string trimmer that hasn’t been used for two years. Pumped the primer, pulled the cord a few times and let it sit for a while, per the directions. Came back, put 50:1 mixed gas in it, pulled the cord and it ran great. Was I surprised. Good stuff.

It worked for me

My chain saw would not start after many attempts over a week. So I added this to the fuel and let it sit for 24 hours after a few more failed tries but figured it needed some time to clean the clogs. Well it did dissolve the clog as the saw started up the next day.

Seems to work

Push mower would start but only ran if I kept pressing the primer bulb. Figured dirty carburetor but didn't really want to take it apart to clean. Decided to give MIB a try. Mixed 4 oz to 1 gal of gas. Poured in tank and started mower. Had to pump primer bulb just a few times until MIB got through the system. Then the mower began running fine...better than ever.

Mechanic in a bottle is great

I've had mowers and generators that sat and wouldn't crank. Follow the instructions.. this stuff does work. I pour some into the gas tank, pull it through a few times, then let it sit 15 to 30 minutes. Every time I've done this they will crank and run. I've recommended it to a few friends and both got their machines running. Yep, I recommend it and do have 2 bottles handy right now.

WOW instant change

My snow blower was running a little rough, and almost instantly when added to fuel tank I could hear the change as it worked it’s way thru the fuel system. Power restored and running smoothly now.

Didn’t fix hunting engine but does seem to clean

Snowblower engine was hunting and had to be choked down to keep it running, so immediately suspected a dirty carb. The carb is a bear to get to, so tried this to see if I could avoid taking it apart. Mixed as the bottle suggested and then did a combination of running the engine and letting it sit repeatedly over the course of a week. Did not make any difference, so I had to tear down the machine and disassemble and clean the carb. It was just dirty, and runs great now. This didn’t do anything fo...

Didn't Work On Lawn Tractor Carburetor

Tried it three times and the lawn tractor still had trouble staying started. My mechanic said it only works about 50% of the time.

mighty mechanic in a bottle

Work well with lawn mower quick starting make run better.

Mechanic in a bottle, A great product

Was thinking about buying a carburetor kit for my grass trimmer. It was hard starting wouldn't run right and every time I would give it gas it would die. A friend told me about "mechanic in a bottle" no truer words were put on a bottle. I mixed 1oz. per 1 gallon shook it up, filled up my grass trimmer, pulled the rope about four or five times and it started. Running pretty rough at first, the more this was running the better it sound. After about ten minutes or so, I picked it up and gave it som...