Sooo, I just got the perform service message on my 2014 that just clicked over 67,500 miles. Looking to buy the filter from Geno's, but confused as to whether I should buy the filter with cooler cleaning kit or not. This thread implies it's a good idea to clean the valve even though that isn't required on the DEF trucks, but isn't clear as to whether or not the cooler should be cleaned as well. If just cleaning the valve, are the gaskets reusable, or do i need to get them from the dealer? The whole cooler cleaning kit looks pretty involved with quite a few gaskets being included, so I would rather not order the kit if I don't need it.