I have used Mobil 1 full synthetic automotive oil on my aluminum maglight threads and o-rings with good results. The twisty on/off heads are now very easy to turn with one hand. - too easy maybe?
Is there a reason to not use oil as opposed to something thicker like grease? Oil shouldn't gall aluminum like some greases do, but rubber o-rings might swell when exposed to oil. Then there's my plastic twist-head diving lights - what would be good to lube the plastic threads and rubber o-rings with?
Is there a reason to not use oil as opposed to something thicker like grease? Oil shouldn't gall aluminum like some greases do, but rubber o-rings might swell when exposed to oil. Then there's my plastic twist-head diving lights - what would be good to lube the plastic threads and rubber o-rings with?