If my trike is under warranty and also with a extended warranty if if do all the oil changes and maintenance to it am I voiding the warranty. Thank you

 

No, but keep your receipts and keep records on when and how many miles.

 

Keep very good records, a dedicated journal would be best...
After the initial 1000 mile I'll be doing the same

 

Funny related story; we got the dealer deluxe 3-year extended warranty deal, with all maintenance included, plus delivery each time and a detail. It was set to expire last month, so I started thinking about adding a few more years last December. In January we stopped at the dealer, and I asked about extending the warranty. He looks it up and here we totally forgot . . . when we bought it we went with the full 2+5, already paid for! Oops!

Anyhow, I've been doing all my own wrenching on other stuff since my first real bicycle fifty years ago, and I'm done with it. I'll pay someone now that I finally can. But if I do change my mind, it's receipts and a journal.