Castrol Power1 4T 10W-40 Full Synthetic Motorcycle Oil, 1 Quart, Pack of 6

If you're looking for a motorcycle oil that can handle the heat of summer rides like a champ, this one is a total game-changer! My mechanic raved about how well it dissipates heat, mentioning that you can let your bike idle in scorching summer weather for over an hour without the fan kicking in. I used to swear by diesel oils for my motorcycles until I found out about the potential drawbacks of using them in gasoline engines. Switching to this oil was a total game-changer for me! While some may believe it's a full-on synthetic, the truth is that it's not; it's actually a highly refined crude oil product. So, if you're after a true synthetic base oil, you'll need to opt for a 100% Synthetic one.I can't stress enough how much I love this oil for its heat dissipation properties and its overall performance. Trust me, if you want your bike to run smoothly and coolly during those hot summer days, this is the way to go. I highly recommend it to all motorcycle enthusiasts out there!

The delivery arrived fast. This is just motorcycle motor oil. I have been using this for years and for me it should be the only one I use. It is supposed to be the one that make the engine run smoothly and quietly. This would be everything you want for you motorcycle to run smoothly. For reference I ride a Triumph Street Triple RS

my mechanic said this oil dissipates heat very well and you can run your idle your bike in summer for one hour or more and the fan will never come on. i used to use diesel oils in my motorcycles, but i learned that that oil has possibly anti wear additives in a higher concentration and that is not a good thing in gasoline engines. However, everyone who reviewed this oil thinks it is actually a man made synthetic. Nothing could be farther from the truth. There is not one drop of actual synthetic base in this crude oil product, but it is HIGHLY refined. Anyone wishing to use actual synthetic base oil must buy 100% Synthetic.

I have used Castrol in my motorcycles, cars and trucks for many years, and it is by far the best oil. Valvoline is the only other oil that comes close to them. I have used it in an SRT4 Dodge Neon, a WRX Subaru, and a CLA-45 AMG Mercedes. None of them ever used a drop of oil, even after 90,000 miles. I have owned over 100 motorcycles (I'm 72) and the same result, not a drop of oil. V Twins, vertical twins, three cylinder and four cylinder bikes - Dirt bikes, street bikes, even bikes I raced. Didn't matter, they all never used a drop of oil. I even use it in my old C Class RV with a Chevy Duro-max motor, and not a drop. FYI, I only use 100% synthetic oil, and I always buy the best oil filters designed for Synthetic oil. I also change it every 5K miles.

As listed

Oil works great used for last 39000 miles on my z900.

works fine for the price.

Awesome oil for a Kawasaki! Buy it!