Posted in the topic
Synthetic Lube VS Motor Oil in the forum
General
March 12, 2009 5:59 PM PDT
My best friend is an automotive engineer and long time Harley rider,he swears by synthetic oil and use Amsoil exclusively. His 98 Classic has about 90,000 miles on it without ever having any major top or bottom end engine work done on it, however he and I both still change our oil at 3,000 miles, 7,500 just scares the hell out of me here in Florida where oil gets real thin real fast.