My cav is 10 years old, so thats 10 years worth of petrol through the injection system. I was therefore wondering whether or not I should have the injectors cleaned.
Now there are two ways I believe:
1. The STP shat you put in the petrol to clean em (cheapo way)
2. Have em removed and cleaned properly (expensive way)
Will cleaning em make that much difference or will i be wasting me cash and effort.