Solid Lubricant for Engine Gearbox 99.9% WS2 1 Micron Tungsten Disulfide Industrial Equipments DOD-L-85645 Aero and Military Standard

Hard to find and I believe the quality is A+.. it looks and feels as it should and made my industrial 1981 Isuzu 6BD1T diesel engine feel smooth, easier startups, less shake and vibration at idle and when turning off the engine.. time will tell but I noticed my engine no longer stalls at startup, before it would stall if I did not hold throtle for first few minutes. I ordered more. Thanks

After adding into the engine, it cause oil starvation issue and spun my engine bearings. Cost a bomb to do overhaul.

It definitely works, but this is too expensive. Buy direct for about $85 with shipping.