Sorry I can't tell you the oil spec on a T5.1, but you don't need any additives, just quality oil changed regularly. I've never let any car go more than 10K miles without an oil and filter change and several of mine have been sold with over 200K miles on the clock, still running well.
Halfords own brand oil, changed every 8 - 10K is better than a much more expensive brand left in your engine for 25K miles, the remap makes no difference.
Type your registration number in to any of the usual websites, Halfords, CarParts4Less, Euro car parts etc, they will tell you what oil you need.
Sorry I can't tell you the oil spec on a T5.1, but you don't need any additives, just quality oil changed regularly. I've never let any car go more than 10K miles without an oil and filter change and several of mine have been sold with over 200K miles on the clock, still running well.
Halfords own brand oil, changed every 8 - 10K is better than a much more expensive brand left in your engine for 25K miles, the remap makes no difference.
Type your registration number in to any of the usual websites, Halfords, CarParts4Less, Euro car parts etc, they will tell you what oil you need.