Ed, I was speaking of the KPA100 amp for the K2. I don't think the KXPA100 needs any maintenance. 73, Don W3FPR On 10/28/2017 7:52 PM, Edward R Cole wrote: > Don, > > I ran my KXPA100 mobile for 5,000 miles to-Seattle and back to AK this > spring. Is there any advise for maint for extended mobile use?