<html><head></head><body><div>When these cars were new, the petrol available in England was very different. I used 101 octane leaded petrol. The lead would foul the plugs leading to the need to replace them on a yearly basis. I would question if the fuel we now use would make plug changes completely redundant. Furthermore I wonder if those specified then are appropriate with lower octane unleaded fuels?</div><div><br></div><div>Best Regards,</div><div>Jeff Lewis</div><div>BJ8</div><div class="ydp6cd7c52eyahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"></div></body></html>