2009 Ultra classic, rode to Philly in 95 degree day, hit stop/go traffic. Engine had AMSOIL 20W-50 synthetic oil. Engine started pinging really bad, and I posted asking about the pinging and thought it was the gas.
I went to Autozone yesterday and bought a pump to take an oil sample, and sent off to Blackstone Labs for a test kit.
Bike has been sitting about 10 days, so I started it up today and the lifters were really really loud. After about 40 seconds, they quieted down somewhat, but were still loud. Took a ride and after about 3-4 minutes, they sounded normal.
After the ride, I collected about 4 ozs of hot black oil that only has 1309 miles on it. The oil was changed at 1K by dealer to Syn 3, at 3817 miles, I changed oil and put in AMSOIL 20W-50 synthetic. At 7622 I changed it again with AMSOIL 20W-50 Synthetic and always with a new HD filter. Bike now has 8931 miles. SO I am number 3 stating my problem, and I am not bashing AMSOIL, but I was the only bike of 17 bikes caught in traffic that day, and the only one that was pinging. Now the lifters???