Power1 4T 10W-50 Full Synthetic Motorcycle Oil, 1 Quart, Pack of 6

Wow wow is what I can say. Have a 2024 super meteor 650 by royal enfield. Up until now was using liquimoly 15w50 street and this time got this one based on reviews. Did the oil change and voila the moto runs like butter. Gear shifting has been impeccable very smooth shifting and engine noise has drastically reduced. Also vibration near to zero at high speeds. It's like life line for this vehicle. Still yet to measure mpg but was getting anywhere from 54-57mpg on liquimoly within cold/hot Texas Dallas weather. Will post edit once I drain a gas tank and post here.Update 06/22/26: it's been close to 800 miles on this oil. Amazing still the ride is good, heat dissipation is outstanding and still moto purrs while riding on highways and local. Getting around 57mpg on local Texas weather and roads.

Great oil for a great price!

Can’t beat this for quality and value.

Castrol Power1 4T 10W-50 Full Synthetic Motorcycle Oil is a premium lubricant that is designed to meet the demanding needs of high-performance motorcycles. This oil is formulated with advanced synthetic base oils and Castrol's proprietary Trizone Technology, which provides superior protection for the engine, clutch, and gearbox.Castrol Power1 4T 10W-50 is a shear-stable oil that maintains its viscosity under extreme conditions. This helps to ensure that the engine is always properly lubricated, even when riding at high speeds or in hot weather. The oil also has excellent anti-wear properties that help to reduce friction and wear on engine components.In addition to its outstanding performance, Castrol Power1 4T 10W-50 is also a very clean-burning oil. This helps to reduce the build-up of deposits in the engine, which can lead to reduced power and performance. The oil also has excellent anti-corrosion properties that help to protect engine components from rust and corrosion.Overall, Castrol Power1 4T 10W-50 Full Synthetic Motorcycle Oil is a premium lubricant that offers outstanding performance and protection for high-performance motorcycles. This oil is a great choice for riders who demand the best possible protection for their engines.Pros:Formulated with advanced synthetic base oilsCastrol's proprietary Trizone Technology provides superior protection for the engine, clutch, and gearboxShear-stable oil that maintains its viscosity under extreme conditionsExcellent anti-wear propertiesClean-burning oil that helps to reduce the build-up of deposits in the engineExcellent anti-corrosion propertiesCons:None

My Ducati Monster 696 calls for 15W-50 Shell Advance Ultra, which is not available in the US. I've looked for equivalents and tried numerous different oils. I found a few like Silkolene that are JASO MA (for wet clutches) and xW-50 weight to protect the air cooled engine during the summer. However, with a 15W-50 or 20W-50 synthetic, the Ducati engine has a really hard time starting in cold temperatures. I always felt that a synthetic 5W-50 would probably be the best way to go for the Ducati engine by offering low viscosity in the cold to assist with cold starts, and the 50 weight to protect it during hot weather usage. The closest I could find is the Castrol 10W-50, which actually helped my cold start issue. I was able to start the bike at 19F ambient, which is actually too cold to ride comfortably unless you are a diehard biker and need to get your 2 wheel fix during the winter.What I still need to test is hot weather speed shifting. I tried Shell Rotella T6 5W-40 synthetic, which supposedly meets JASO MA, but caused my clutches to slip badly during WOT speed shifting. With the T6, I suspect the xW-40 was too light of an oil to prevent the clutches from slipping/grabbing. Once I drained the T6 and poured in M1 V-Twin 20W-50, the clutches worked properly. The M1 20W-50 is actually robust oil, but it is too thick for reliable cold starts, even when the ambient temperature is about 40F.Overall: 5/5 stars, actually a great price for what appears to be a robust oil. I wish they made more motorcycle oils in different weights like 5W-50 and 10W-50 in the US. I am hesitant to try 10W-40 in my Ducati because of my experience with the Rotella T6 5W-40.

This is good oil for 10K mile oil changes in my Triumph Speed Twin. And, it is less money than I used to be able to get it locally... I don't actually find it locally as Cycle Gear is now carrying some brand I have not ever actually heard of.

Was running motul 300v2. My engine is at WOT over half the time. Oil is cashed at 1500 miles. Motul was getting pricey. The Motul seemed like it made more power.Shifting seemed a little smoother too on motul. Bought a case. Ive heard engines adjust to different oils. We'll see how next change goes .

Great value for the quality of oil. Seems to be working wonderfully in my KTM 500.