Mineral transmission oil SAE 90 GL-4.This mineral single grade SAE 90 transmission oil is suitable for gearboxes and heavier loaded crown and pinion wheel of classic cars which have an EP 90 oil with API GL-4 specification as recommendation. The additive package makes this mineral oil suitable for classic car transmissions due the fact is has no influence at the copper alloys such as bronze and brass as well as the paper and cork sealants used in those days.
According to the specifications of:
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