Overview Reviews Product Description Product # MK-WS2-06 Tungsten Disulfide Powder WS2, 99.9% Pure, APS: 0.6 micron All prices are in US Dollar. This is Non-Hazardous product. Please select only Non-Hazardous shipping options on online order form Product Videos WS2 Brochure/Data Sheet WS2 Brochure/Data Sheet View/Download SDS- English- Tungsten Disulfide (WS2) View/Download Product Reviews Write a Review Write a Review × Lowerfriction Lubricants Tungsten Disulfide (WS2) Powder, 0.6 micron Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments * 3 Reviews Hide Reviews Show Reviews 5 WS2 powder Posted by Brandon Cole on 2025 Jan 4th I used this 0.6 micron WS2 in my perkins 6.354.4 marine diesel engine at a rate of 8oz WS2 per oil change (10qts). The oil consumption dropped by 90% from a gallon every 100hours to a couple of cups. Been using this for years now and engine has 18k hours on it now. Wear on the cam has stopped, valves are still at the specified clearance after 8k hours of using this with every oil change. Be aware this settles out slowly in the pan, so start the engine at least every 3 weeks, which is good for the engine anyway. 5 Tungsten Disulfide (WS2) Powder, 0.6 micron Posted by Tomasz on 2024 Nov 8th Super 5 Seller Review Posted by AJ on 2024 Aug 22nd I have ordered from 3 vendors, and Lower Friction is the only vendor that actually sent me the real stuff. Be careful there are fake vendors out here selling trash. Lower Friction is the real deal. 5 Stars, fast shipping and great customer service.