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Royal Purple's proprietary additive technologies, such as Synerlec, enable its products to outperform leading synthetic and conventional lubricants
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Thermyl-Tuff® is recommended for heavily loaded open gears, skid rails, bushings, couplings, bearings, cables, etc., or low speed bearings operating at high temperatures.
Thermyl-Tuff® is a viscous, tacky, semi-fluid lubricant that protects extremely heavily loaded sliding surfaces such as open gears, skid rails, etc., where other EP products perform poorly or even fail.

Thermyl-Tuff® cannot be washed off by water, and its superior, synthetic corrosion inhibitors provide outstanding protection in wet and / or corrosive environments. It is formulated with Synslide®, Royal Purple's proprietary, noncorrosive, EP additive technology

This product is extremely tacky and not recommended for dusty environments.

Find out more: See the PS & MSDS (Product Sheets and Material Safety Data Sheets)

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Hot Rod magazine Endorses Royal Purple® Lubricants
"It occurred to us that we've yet to run a test with Royal Purple® oil that didn't result in a power gain—it might be a marginal gain (as with our little Acura Integra), but it's a gain.
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