I Have had some issues with my Fusion starting just after New Year. As the engine reached operating temperature, there would be occasions when the car would drop into 'Limp Mode'. I would have to wait 20 min's or so before resuming normal operation. There was nothing to find at the garage, so I continued use. The problem became frequent, so I went to my local independent who identified the issue as a clogged turbo. Instead of getting the spanners out, he advised me to use Millers Eco Max. Half a bottle in a full fuel tank & then the stated dose. After a week in which the limp mode occurred twice, three full weeks later, the problem has not reoccurred at all. The car didn't seem to smoke at all before but has been a bit smoky on start up just this week.

Any thoughts?

I never understood how fuel additives could clean the turbo. Fuel system and Exhaust system are not linked to the turbo in any way, so I am always dubious. IIRC, EGR gasses are passed from the EGR Valve and straight back to the engine, I dont believe they go back into the turbo, in which case, I think its more a case of fortune!

Exhaust system not linked to turbocharger ? ? ? ? I hope it is ! !

The only part of fixed vane turbo that could potentially clog/stick could be the watgate,

I couldn't remember, I read somewhere that the pug engines bypassed them... It read enough that I believed it so I am really unsure lol

Iantt, regarding the watgate valve, the solenoid or actuator attached to this, is specifically the part that the mechanic stated was faulty, or the valve is sticky.

Good spot sir!

On the front of the turbo and EGR, I remember it said the EGR sends the air away from the turbo as it doesnt need to be heated, but this direction of air causes the turbo to spin.... I am finding conflicting video's now, but the ones I have found are still suggesting they are separated...

Google is your friend James . . !

Principle of operation of turbocharger - or similar !