Bell 1 Trotrans S5 is a semi-synthetic multi purpose gear lubricant specialty formulated to meet the unique
requirements of API GL-5 service.
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Bell 1 Trotrans S5 is blended from selected base stocks and additives that yield a
lubricant of exacting quality.
This product is compounded utilizing sulfur phosphorus GL5 chemistry and contains
foam suppressants as well as corrosion inhibitors which are specially designed to protect bronze alloys.
The result is a lubricant, which resists the formation of varnish deposits on synchronizer components thus assuring long, trouble free operation.