Hi all,
I just moved to France and gone through the MOT, it failed only on the Opacity Smoke test, average was 0.70.
it does state on the doc (0.35,-1) C5: 0.78 C6: 0.69 C7: 0.63 Avg: 0.70
I ordered some engine cleaner here (Bardahl 5-1) which the garage recommended.
I had not really taken it...