Hi, Have just refilled my 00 1.8 Zetec Focus with Shell Optimax fuel. Have just looked on the net and found that it is 98 Ron when the specified fuel for the Focus engine is 95 Ron. What have I done? There were 2 pumps with green handles, both marked unleaded so I thought I would get the more expensive (thinking it might be better?) - I looked for a Ron marking but as there was none on either, I assumed they were both 95 and that one had more/better additives. Am I likely to cause any damage to my engine? Will it do any good? Will it do any harm?
Help please
"Worried" of North Riding of Yorkshire