I own a 2019 Pilot Elite. During visit for an oil change, the mechanic advised me that I'll need to have my rear differential fluid changed at 20,000. He said normally it's not due until 30,000, but the 2019 model of the Pilot Elite requires it at 20,000. I've checked my vehicle manual and searched on-line and can't find anything to validate this. Am I missing something? Appreciate any help. Thank you.