LM 5153 Pro-Line Fuel injection Cleaner 500 ml

Poured it in tank and filled full tank of petrol.50 miles of driving in 4th gear @ 4k rpm.All sluggishness went away and the car feels smooth even after 2 months.

A must

I used to use the non-proline injector additives, only realized that that have more of lubricants effect than hard cleaning.After using the proline:1) full tank of fuel + proline2) run to half tank fuel, then top to full tank normally3) complete the full tank of fuelI felt the engine wasn’t running smooth comparing to the standard injector additive, and I do feel the engine runs very hard at phase 1) and 2). Fuel economy wise has little change.Making sure do 1) and 2) when you are travelling long distances on highway, I did at least 150miles at 60-70 motorwayAfter the proline is completely clean up from my fuel tank, I still feel the car runs much smoother than before. Without technically inspecting, I think there are some improvements.With the standard injector cleaner (none-proline), I get the reverse effect: with the additive the car runs smooth, without it runs very rough….This makes me think the proline product is mainly focusing on cleaning the engine and removing carbon, where standard injector additives is used for lubricanting after hard cleaning with this product.Very expensive, but it seems to be worth it - once every 5000 miles.

It seems this product works. Probably will buy again one.

Best cleaner on the market

You only get better MPG while the product is in your tank, the next tank you fill you're back to normal. Basically this is just a fuel injector cleaner, and it does the job well. That is all.

Iam getting very good mileage now

Really not sure if it worked or not?