Guys,
I was advised that to clean the Airfilter I should use hair shampoo. I tried this, which ended up in a gunky mess which took some cleaning off.
This was probably the oil reacting with the water.
I was advised again that there are water-based Oils for filters which will allow the use of cleaning with water and then can be re-oiled afterwards.
So, can you please advise on teh following couple of things really:
# How to clean the filter
# What Oil to use afterwards
AND if the 'gunky' crap described above was the result of water & oil mixing - surely this is a valid argument for using only water-based oils i.e. that this effect must be happening in damp/wet weather to a lesser extend most of the time in UK climate!