The motorcycle performed so well and was so quiet I thought I had lost my hearing. After changing the primary & transmission with the Lucas products I went for a 360 mile ride with temperatures right around 97 degrees. Not recommended where an API GL-4 or GL-5 gear oil is required.
I have tried all the Harley Davidson appropriate fluids (Formula +, Syn 3), Mobile 1 V-twin, Redline primary & transmission oils, Spectro for the six speed transmission, Bikers choice primary & transmission oils, and Drag Specialist primary & transmission oils.īy far the Lucas in the primary and transmission out performs the previous mentioned oils & lubes once again. Can be used in engines, transmissions and the primary chaincase. I was so impressed that I went out and purchased your Lucas primary oil (10790) and the V twin gear oil (10791). The Lucas 20w50 synthetic is smoother, by far the quietest, cooler and the engines performance is awesome. I tried your Lucas 50w petroleum and the V twin 50w synthetic both were better, however, your Lucas 20w50 synthetic (10702) is by far the best performing oil of all. Oil 20w50-60w, screaming eagle Syn 3 (screaming eagle synthetic blend), Valvoline 60w racing oil, Valvoline 20w50 motorcycle oil, Castrol RS V-twin ST synthetic 20w50 motorcycle oil, Redline synthetic 20w50-20w60, Amsoil 20w50-60w, Mobile 1 V-twin, Drag Specialist 25w60, and Torco V-series 60w. For some reason this engine 103 CC has ran hot and made a lot of valve train noise. The Best Oil for Harley Davidson Amsoil Synthetic Transmission Fluid and Suspension Fluid AMSOIL Synthetic transmission fluid provide automatic transmissions with superior friction protection and performance over a wider temperature range than conventional automatic transmission fluids, avoiding breakdown and maintaining its viscosity in. This is my sixth Harley Davidson since the early seventies. I have 30,000 miles on my Harley Davidson FLHTCUTG and live in South Texas where the temperatures are warm all year around.
I just wanted to let you know about my experience with your Lucas motorcycle products. JR Hall Says his Harley Davidson runs smoother, quieter, and cooler with Lucas 20w50 synthetic Motorcycle Oil