Spark Plug Life
My 2009 Avensis TR 2.0 petrol auto is due for it's annual/60000 service where it advises spark plug replacement. As the car has only done 37,000 is it worth spending £50 on a new set of plugs which are theoretically only about halfway through their life or shall I wait until the car reaches that mileage before changing them. My annual mileage is only 10,000s or so which would mean another 2 years before changing them. One piece of advice I've had is to have them changed on the grounds of age bu
Update. I checked the spark plugs and they look original. Here are pictures of two I checked: As you can see they are well used. What I did was remove the left hand wiper, the rubber weather strip and half the cowling covering This gives enough room to unbolt, disconnect the coils and remove the coils. The access is fine if the tools used are the correct size. Now to order the new spark plugs.