syn 3 is made by citgo oil the cheapest harley would pay it is not even made in the usa
thats why i dont buy syn 3, mobile 1 or amsoil are real synthetics -ride safe

 

OK, OK, OK!!!

I am convinced! Will somebody PLEASE tell me WHERE to buy myself some AMSOIL????

Autozone? Pepboys? Bob's Engine Excavators???

 

Actually, it is refined in the U.S. It's just the Citgo is owned by the Venezuelan government's oil company. And if it bothers you that it is "the cheapest", I would guess you have already replaced all the outsourced parts HD buys to put on your bike - after all, they were probably made by the low bidder!

 

'03 Road Glide with 42K miles... always had SYN 3 in all three holes... I change it often (tip ~ always change the o ring(s)) and I have never had any lubrication issues.

I do have bro's that swear by and use AMSOIL religiously with no issue.

I think the key is frequency of change.

 

Use what you want but I want the best in by cars and bikes. That would be group 4 synthetics. I have used Mobil1 in my cars as long as I can remember and never had any kind of internal engine problems. When I sold my '86 Buick Grand National's motor the guy buying it wanted me to pull the main caps to inspect the bearings. The guy could not believe it had 140,000 + miles on the motor the bearings looked so good. They were hard miles too. I never have been easy on any of my vehicles. Heck, the benefits of heat resistance with group 4 synthetics is well documented. What more could you want on an air cooled motor?