I have been using this particular oil in a Yamaha XT 600E for the past 1,000 km, in daily use in Crete, with temperatures hovering around 30°C. So far, the experience has been excellent.

Butter-smooth gearbox: Gear changes are smooth and quiet, as much as possible for this type of gearbox, from the very first day until today. The gearbox seems to operate with absolute consistency.

Quiet engine: I don't hear any rattling or 'dry' noises from the engine, which means the oil provides very good lubrication – even when the temperature rises.

Performance in heat: Despite the heat in Crete, I haven't noticed any signs of performance drop or oil 'burning.' The engine maintains temperature and performance at normal levels.

If I notice anything new, I will return with an updated review.

Unacceptable, it made the gearbox stiff, I will never use them again!!!!! I can't tell if it burns, I didn't measure it, but it doesn't work even when it reaches the temperature where the oil is supposed to provide lubrication

Test on Fazer 600 '2004.
I am referring to EXS 10W40.
One of the best motorcycle oils you can use.
Slightly inferior to Amsoil - which worked perfectly for me.

So far very good, I have done 1000 kilometers and indeed the engine sounds better than the EXP from the same company that I was using before and the gears are much smoother

v-strom 650 of 05..Coming from motul-castrol, I have to say the following!!

U N B E L I E V A B L E oil..But not the exp...

Smooth gears, smooth engine!
I will be using this for life...

update after 1,000 kilometers..The oil level dropped, which means it's consuming the full synthetic! So, it won't be used in the engine again..

For me, it is the top lubricant company... I use them in all my vehicles.... everything works simply perfectly.... especially in gearboxes and differentials, you can see a huge difference.....

From my experience, I have to say the following....
Several years ago, I owned an fzr1000 exup 89. When I got it from a friend, it had 140,000 kilometers. During a ride, one spark plug got damaged, resulting in it running on three cylinders, and I drove it back to Athens from Isthmus.....what a disaster! I opened the engine with a friend...a hole in the piston...the previous owner had been using belray mc17 from the beginning, which were the first exs back then...guys, the entire engine was BRAND NEW inside, no dirt or discoloration on the metals...we were amazed. I have an mt 07 now and only use EXS, I don't change it. It revs better and the gearbox is perfect...they are worth it

Owner of Triumph Daytona 675, I have tried several oils (either Castrol as the manufacturer suggests, or Liqui Moly, or Motul, or fake brands just to test them and change them after 500 km).. I have never been so satisfied.. I use my motorcycle for everything.. To go to work, for rides, for trips, I work in the city so I encounter a lot of traffic and therefore heat.. I feel my gearbox as if I just bought it from the factory, and I also hear the engine purring just as it should.. Very good quality and I recommend it even for a test of a few kilometers.+++++++++Always upright!

Someone who used to race on tracks once recommended them to me. I have been using them for the past three years and I have no complaints. I use them on a CBR 600 f4 and now I also own a Kawasaki Ninja 636. They are subjected to very hard use and previously, shifting gears required some effort, but now they shift smoothly as if they have been blessed by the Pope