Mammoet’s Dutch operations switch to Shell gas-to-liquids fuel: expected to lower emissions, noise levels and contribute to local air quality. Mammoet, a service provider specializing in engineered heavy lifting and transport, will use cleaner-burning Shell gas-to-liquids (GTL) fuel to power all its cranes and trucks in the Netherlands. The switch is expected to reduce emissions and help improve local air quality as well as lowering noise levels compared with conventional diesel.