Injector cleaner yes/no?

[Sharkie]

So many people know always better and never take an advice, some only when is already too late.

Epic quote in support of your statement Miro ....

Good advice is useless. The wise don't need it and the fools won't take it …..

[Transporter]

I agree.
It's the quote of the day.

Sent from my GT-I9505

[Martin]

I can't say if it is a good thing to rely on Fifth Gear or Top Gear on their conclusions, in particular on the injector cleaner matter. They are in the business of entertainment

Yes, they are in the business of entertainment - that does not mean they are unable or unlikely to provide useful motoring tips

The injector cleaner matter was evidence based (dyno) - I have no problem accepting it
Taking an older car with a unknown service history, giving it some TLC improved it's performance, what a shock outcome!
There is nothing surprising or dubious there at all