25-02-2015, 12:48 PM
Small amount of diesel will run down the threads rather than wd40 which will evaporate quickly. Also yes do it when hot.
Are they known for seizing though? I've never cone across a seized spark plug yet...the above works well on seized glowplugs though should be the same!
Are they known for seizing though? I've never cone across a seized spark plug yet...the above works well on seized glowplugs though should be the same!