Appreciate the thoughts. Wish there was a filter as well but up here in upstate NY there is little need as the pollen thing is a pretty short time period. Dirt etc. is basically a non event except up in the hills by my camp. As to the anti-oxidation coatings - I have been fooling with cars since I was 13 - 47 years ago. Started out on flathead fords, straight eight buicks and v-12 caddys. Never seen anthing better than wd40 on battery terminals and I have virtually tried everything. The brass fittings on my wife's toy have lasted over 2 years after cleaning and they look as new as the day they were made. Hmmm.