Johnson Motard HM 4T is a heavy-duty mineral range for long-distance and taxi motorcycles: the 25W-50 grade targets severe-service, heavy-load operating environments, while the higher-viscosity 25W-60 grade improves piston sealing and compression for extended engine and gearbox protection on long routes.
SAE 25W-50 / 25W-60 · API SG/SL · JASO MA2
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