Not sure but....

Try some TW25B and if you're near a military base it should be pretty easy to find. Keeps everything clean and stands up to high heat (over 500 rnds cyclic) and still kept a 240B going in Afghanistan dust storms...

Sent from my SM-A730F using Tapatalk

__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course