Mineral gear oil SAE 90 GL-4.
 This mineral single-stage gear oil SAE 90 is suitable for gearboxes of historic cars, where EP 90 oil with API GL-4 specification is recommended. Thanks to the additive package, this mineral oil is suitable for gearboxes in historic vehicles, as it has no effect on copper alloys such as bronze and brass and on the sealing materials used during this period.