I charge £75 for a timing check and adjust.
A few things can show it, usually tell tale is tippex marks. But I had one in on Tuesday, that was down in the low 30mpg, pulled ok.
I'd reset it, on the journey to collect him, it was up at around 38mpg and pulled like a train afterwards.
Ok that's sweet. Well il see how this garage gets on. Then might come see ya. What town u in ?
To be honest. The previous owner said he changed it. And my mpg is s**t and car feels a lot slower than my brothers 182