Millers Petrol Power Ecomax
"This fuel additive is for use in all petrol engines, it will increase the octane rating of your fuel by 2 numbers. It also aids efficiency by increasing MPG and also increase power. Helps with the cleanliness of petrol injectors and carburettor jets. The detergents clean and maintain the engine and fuel systems while reducing the emmisons."
https://www.amazon.co.uk/gp/aw/d/B00...VZLI&psc=1
Thoughts?? Anyone use this or items like this?