Ford Telstar Engine Problems
Fuel confusion
Answered by CarsGuide
26 Jan 2007
IT depends on the compression ratio of your engine. When it was sold new there was a choice of standard and super petrol. Standard had an octane rating a little below the 91 of the current unleaded, super was 98. Most cars of the time were running super and I believe that would be best for your car, with an additive for protection of the valves and valve seats.
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