I have been using crappy Tesco fuel for a while, missus wants the tesco club card points
I see Esso will soon offer Tesco club card points which hopefully make the fuel quality better. Look forward to that
EGR valves are a pain when they get sooted up and have found in my other car that using better fuel stations the EGR vavle got less sooted up.
I bought some of the Archoil AR6400-D product. I only stuck half in to half a tank of fuel just to see what happens, never really put additives in before so did not want to add the whole lot in just in case.
I must say after running about 30 quid of diesel the engine now ticks over better on stand still and the performance of the engine feels better. I have not been on a long run yet, I think I will need to run the full treatment first.
I had been getting engine light on for about 2 months but never got a chance to get it checked out, but the engine light has gone away about 20 litres in to the treatment.
I recommend giving it a shot in your Diesel if you run cheaper fuel, but can be used in all Diesels anyway as it has many benefits.
Also the club has a discount code: FORDCLUB when buying via PowerEnhancer.co.uk