Spark Plugs Change @89,959km.....

Well, of late I notice the power level is no where near where it was.....

Been using the NGK R7434-8 for close to 50,000km.....

My plugs.....

This is how they look like after about 15k of mileage.....

Spark plug change at 34,779km.....

A fresh set of plugs went in.....

NGK R7434-8 to be exact.....