Couple guys use windshieldwasher fluid here, mixed with something, like neetsfoot oil to slow the evapouration. I'm on my last bottle of LehighValley Lube - then will have to switch to Hoppe's #9 PLUS. Only trouble with anything else than LHV, the point of impact changes. Must watch that. The LHV shoots true to the line of the barrel, where the others don't. Has to do with barrel whip, timing, etc.