ERRY CAMPBELL OF LINCOLN, CA works in the industrial laundry business, but he
spends his free time riding his motorcycle in the Sierra Nevada Mountains. Although
he has been a Honda rider since the age of 15, he recently bought a 2003 Harley-Davidson
Dyna Superglide. "The biggest thing I noticed was that the big V-Twin engine runs hot,"
He initially ran Harley SynTec 3 in his crankcase, Redline Heavy Shock in his transmission,
and Redline 75W-40 in his primary chain, according to Redline technical services
recommendations. "Well, the Redline didn't work any better than the Syn3," Campbell said.
"In fact, my transmission shifted worse. The Harley SynTec ran too hot, and the Redline
He remembered that years before he had used AMSOIL Synthetic Motor Oils, so he installed
AMSOIL products in his new motorcycle. He runs AMSOIL 20W-50 Synthetic Motorcycle Engine
Oil in the crankcase, AMSOIL Series 2000 Synthetic 75W-90 Gear Lube in the transmission
and AMSOIL 10W-40 in the primary chain, and has installed an AMSOIL SDF Motorcycle Oil
"So, I've been running AMSOIL in all three cavities now," Campbell said. "It has made
quite a difference. My engine is running at lest 30 degrees cooler, my transmission
shifts much smoother, and my primary chain is quieter."
He said his engine had been running between 280 and 300 degrees Farenheit, and when the
engine was cold, the transmission would grind when he shifted from neutral to first
gear. "Not anymore," Campbell said. "Not bad improvements from just changing oils.
I first used AMSOIL lubricants in the late '70s. I never should have stopped."
He's getting increased horsepower out of performance cams, he said. "This is really
smooth. I've been a believer in synthetics since the '70s. I've seen the proof, I'm
happy with the AMSOIL. The products seem like real quality products and if they keep
my motor in my Harley running longer, I'll keep using them."