He's a very knowledgeable Mazda enthusiast who firmly believes in using only Genuine Mazda parts unless there is something on par or better. Plus there are a whole lot of China fake goods out there for sale.
To me that spark plug change interval is ludicrous and based on results and projections from a controlled environment which none of us drive in. I would never leave my plugs in any engine for that long. But to each their own.
To me that spark plug change interval is ludicrous and based on results and projections from a controlled environment which none of us drive in. I would never leave my plugs in any engine for that long. But to each their own.