Talk Morgan Forums Thread Like Summary - Spark plugs for GDi

I need to replace the spark plugs on my 2020 GDi (the front one is badly corroded around the ceramic). The car is currenly fitted with Ford CYFS12Y1 (original fitment), however they are not that easy to find (no doubt due to the engine being for the US market). I have been offered NGK LTR6DI-8 as an alternative - does anyone know if these will be OK or can recommend anything else?

Good idea to smear the threads of the plugs with ultra high temp ceramic grease (Copperslip is ok but ceramic is better) and do not over tighten. I always remove the plugs from new cars I acquire and replace them after lubricating the threads. This is especially important in modern engines since the plugs stay in for years before they need changing and one must be so careful with fine threads and alloy heads.

I believe 0.8mm or 32 thou is near enough. Certainly most fit them as supplied for the simple reason the fine tip can easily be damaged by adjustment. Another reason why the gap is included in plug spec. Les.