So far, so good...high mpg values and great fuel economy
My original ignition coils ( Audi OEMs ) were hard to come out of the car ( to the point I drew blood!!!! ). Once out, they were replaced all at once ( I've an B8.5 S4 with six of these ) and replaced the spark plugs with iridium ones from the installed originals ( see pictures attached ). The mpg on the car before was in the low/ mid teens...very rarely did I get beyond 20mpg from a V6 engine. Wow!!! What a difference a change in ignition coils and spark plugs makes. The mpg now is high. As I need it. Save on fuel. I use 97 RON in my car and, when the budget allows, use 105 RON ( Shell vPower in the UK ). It's a brilliant product. Whatever the mix of fuel is in the engine with the spark plugs, this is the business. The car feels different. More assured. Poised. Confident. It's the best ( after much research, I settled on this and it was the best things to add to the car; as well as a nice new K&N air intake ). To summarise, brilliant choice of equipment and quality product.
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