Carwaxx engine cleaner is an engine cleaner free of solvents. It cleans engines, gearboxes, trucks, cars, boat covers, workshop floors without leaving any residue. Product features: high cleaning power. grease removal effect. environmentally friendly. How to use: spray the product directly on the surfaces to be cleaned. leave it to work for a few minutes depending on the dirt, a brush can be used if the dirt is heavy. Warning: do not use on hot surfaces or in scorching sunlight. do not let the product dry on the paint or glass surface. country of origin: Germany.