What is Shell Advanced Low Lead 4 Star petrol?
New Shell Advanced Low Lead petrol is a breakthrough for 4 Star leaded drivers because it enables them to join unleaded drivers in cutting their emissions of lead to the air, while still having enough lead to protect their engines. It cuts lead from car exhausts by half and meets all the requirements of the British Standard for leaded 4 Star. What’s replaced the lead that Shell has taken out, to maintain power, performance and reliability? Shell refineries vary the combination of high octane components in Low Lead 4 Star to give it the same octane rating – and same engine power and performance – with less lead. So it has enough lead for complete valve seat and engine protection, with no loss of power or performance. What should classic car drivers do if they currently use the ‘I in 4’ system (1 fill of 4 Star for every for 3 of Super Unleaded)? Instead of using this cycle of fills they should use Shell Advanced Low Lead 4 Star all the time. This will halve their lead emissions but stil
