Motul 104121 300V Factory Line 4T 10W-40 100% Synthetic Engine Oil 4 Liters Ester Core Technology Racing Motorcycle Motor Lubricant

Good price and great quality oil. First I thought it’s fake but I researched and it’s original. Engine feels more smoother.

Does what it is supposed to. Protects engine, shifting and clutching are spot on, and i have a quick shifter, so the clutch is rarely used. It is pricy so buy it by the gallon.

Great Oul for my Busa.

Why did you pick this product vs others?:El mejor aceite para mi R6 2005, la uso solo para la pista de carreras y le da un mejor rendimiento a mi moto

266 reviews and over 250 are 5 stars, there is a reason for it.. Buy this oil, it is the easiest to work with in terms of pouring since the container has a build in funnel, and the oil itself is some of the highest quality I'v ever seen/felt when it comes to riding my motorcycles. I use it in a 04 CB599F Hornet and an 02 ZRX 1200R, it has smoothed down the "CLUNK" between gears either at idle or high rpm and I can almost feel the engine running happier with it.Both engines are water cooled and on my CB599F Hornet I noticed an outer engine casing temperature drop of 4 degrees after using this product (same day within 30 minutes apart of temperature measurements in shade, both oils brought up to operating temperature..It's such a high quality oil that I'll never use anything other than Motul oil unless absolutely necessary, shipping was SUPER fast, arrived 2 days earlier than it said it would even during this Covic 19 crap, you can't go wrong!

I’ve got a 2005 Kawasaki Z1000 that has seen a few different oils in it’s lifetime. I’ve ran Rotella T 15-40, Mobil 1 Motorcycle 10w40, and Amsoil 10w40. Of those I’d say the Amsoil was the best but all of them left the bike with notchy shifting and harshness in the engine. The Motul is the only oil I’ve used that I could instantly tell a difference. Upon initial start-up the bike was WAY smoother and quieter. The shifting was easily the biggest difference. The notchiness was completely gone, it glides easily into the next gear. The downshifts were also a lot smoother. I also noticed the vibrations are much lower at highway speeds and I found myself speeding more as the vibrations would keep me from going too fast before. On top of all that the engine temps are about 10-15F lower and when the temperature does creep up at stop lights it goes down much quicker now than before. Needless to say this will be all I use going forward.

Made my engine shift better, and was able to get it on sale. So far seems to be working great.

Used it for my R1 ... seem like really good oil