M Mahons Registered User Messages 163 21 Oct 2007 #1 Hi, I was in Halfords the other day and noticed a Fuel additive product. It claims to increase the fuel efficency by anything between 5 and 15%. Has anyone used it before and do they do what they claim?? Thanks Mahons
Hi, I was in Halfords the other day and noticed a Fuel additive product. It claims to increase the fuel efficency by anything between 5 and 15%. Has anyone used it before and do they do what they claim?? Thanks Mahons