My dealer gave me a $50 card to use at the dealer when I bought my bike. I went there today and bought some oil filters, air filter, spark plug with it. I wanted to buy some copper crush washers for the oil drain bolt but the guy said they don't stock that item. He said their service department reuses the washer. What size bolt and washer does the Himalayan use? I would like to use a fresh washer during oil changes. I guess I can bypass the drain plug all together and just remove the screen housing cover?