Sir, 

  I recently drove back from Cornwall and before doing so, I filled my tank with unleaded fuel priced at 102.9.  

Upon arriving in Monmouth I saw it was 109.9. Now reduced to 107.9. In Loughborough, where my son lives, it is 101.9, 

How can the huge difference in price be justified?

 Pauline Cass

(Monmouth)