I used it in my old petrol audi turbo you fill up yer tank with gas and then put this whole bottle of stuff in the tank you ride around till yer tank is empty and voila yer injectors are like new No more misfiring or hesitation think of it like white marching power for yer engin You can also use top premium gas once a month. it dies the same ting and works out cheaper
Verified purchase: Yes | Condition: New
Bought to put in my petrol ride on lawnmower which was running poorly even after a major service at a main dealer. Replaced all the service items and still it was running very badly and cutting out a lot. I was not expecting miracles when I resorted to this STP treatment but I poured the whole contents into a full fuel tank and after 15 minutes of poor running it suddenly picked up and ran cleanly. Starting is much better now and it runs like it used to. I am really so pleased I will use it every major service on all my vehicles.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
a very good product that works well and at a good price
Verified purchase: Yes | Condition: New
Saves me fuel and heard my engine very quiet.
Verified purchase: Yes | Condition: New
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