Great Performance, but Separates with 100LL Fuel
Maxima Castor 927 is a solid 2-stroke oil that delivers excellent performance in terms of lubrication and engine protection. It provides smooth operation and keeps my engine running well under a variety of conditions. The oil burns clean and leaves minimal residue, which is a definite plus. That being said, I’ve encountered an issue when mixing it with 100LL aviation fuel—it tends to separate. While this doesn’t affect its use with regular pump gas, it’s something to be aware of if you're using aviation fuel in your mix. Overall, it's a great choice for most 2-stroke engines, but be cautious when pairing it with 100LL fuel. Still, the performance and reliability make it a top pick in my book. Read more









