Just out of curiosity, has anyone that performs their own maintenance ever had to prove you performed the services at the intervals to the manufacturer for warranty coverage? Just wondering how that works, if you take it to a shop usually it is recorded but self service you just have a receipt, does that make it harder to get warranty work covered? I try do to it myself when possible but when we got our expedition I looked at it once and thought what a PITA. I do agree with others that doing it yourself is best since you know what is going on, so many times have I found caps not secured, items improperly tightened, fluids too full or low, among other items.
