Customer Ratings & Reviews

Changed the fluids on two holes (Crank & Tranny) on my 2016 Harley Softail Deluxe. Used Amsoil fluids for both. This was the first fluid change I personally did since the factory warranty at 1,000 miles. Factory had used some other synthetic fluid which was an improvement from non-synthetic. But what an incredible difference after doing my own and switching to Amsoil. My moto seriously runs much cooler and the tranny feels great when shifting. I fell in love my bike all over again. Plan on continuing to use and will soon try out the Amsoil primary fluid.

This really made a difference with the loud clunking when I shift gears. I first used Red Line and it sounded quieter the first couple times riding after oil change but got back to loud clunking, I tried Amsoil and after 2000 miles I am very satisfied and will use this from now on.

I have noticed less debris between change intervals since using this oil. The 5th fear wine has quieted somewhat too.

Great stuff so far. Shifts smooth and quiet, noticed a difference about three rides after change. I believe it had to coat the gears and linkage for a while to take full effect. will continue to use it from here on.

My Harley Davidson seems to be quieter and seems to shift smoother since using this product. It also appears cleaner when drained!

The transmission shifts easier and noticeably quieter than when I was using Harley's synthetic oil.

Harley road king ,in the transmission no.hard shifting smooth ,

Significant improvement in shifting...no more "clunk" when I change gears.