Berryman Products0116 B-12 Chemtool Carburetor, Fuel System and Injector Cleaner, 15 Ounce, (Single Unit) (Pack of 3)

I have an old car, 25 years old with 225,000 miles. A '98 Nissan Sentra SR with a 2.0L 4 banger.A daily driver/beater.While the engine is in very good condition (pretty much equal compression all 4 cylinders and does not burn any oil)However, I noticed some idle irregularities and now and then some brief intermittent acceleration hesitation.So, upon recommendation, I added a can Berryman B12 to the 10 gallons of gas in the tank and per instructions poured gradually another can into the air intake while running on elevated idle until the engine stalled.Let it sit for 10-15 minutes and started again doing, repeating the same procedure.It must have cleaned, flushed out a lot of carbon deposits!After I was done I went on a drive and noticed a much better throttle response and somewhat "beefier" engine!Stopping I noticed that my idle RPM all of a sudden was almost 300 RPM higher at around 1200 RPM than before.Accordingly I adjusted it back down to the recommended 900 RPM.Driving around the next surprise was that I got better mileage than before!That all was last year and the summer.By the end of the year I had to do smog check emissions test.I passed with flying colors at the tester remarked about the emissions numbers "astonishing clean for such an old car".From my personal experience I can strongly recommend this products should you have any carbon deposit issues.

Good pricing! Been using this product for years now.

Better deal than the store plus i use this all the time makes my vehicles run better.

Use at directions say and see an awesome performance increase

Excellent price and an excellent product that helps to keep your fuel and injector system clean. It's in a metal can for a reason...quality ingredients that actually works! It beats every other similar product I've tried. I used in all my vehicles and my small engines. Berryman makes some really good products!

I like the B12 chemtool, but of the 6 cans I ordered, all were dented. Doesn't affect the product, just glad none of them leaked.

High quality product, consistently performs.

This product helps car run better enough said.