In hot and humid environments, the key to a tricycle's longevity is to check the coolant level before each trip, rinse the radiator fins with clean water every six months and avoid direct sunlight. Clean the chassis of mud and dust weekly and dry it immediately, then spray anti-rust wax on the brake drums, leaf springs, bolts, and welds. Change the engine oil every 2500 km, using a 15W-40 high-temperature, shear-resistant formula; check the gear oil every 5000 km and replace it if it emulsifies; drip oil onto the chain every 500 km; reapply grease to the driveshaft cross joint every 1500 km to prevent sand and dust from rubbing against the shaft; check for oxidation of the connectors monthly and spray electrical contact protectant; replace belts with cracks exceeding 2 mm immediately; keep tire pressure 0.1 bar lower than the nominal pressure to reduce bulges; never overload; use low gears on slopes to reduce the need for partial engagement.
By adhering to the "daily fluid check, weekly cleaning, monthly lubrication, and quarterly maintenance" routine, the tricycle's lifespan can easily exceed 10 years, saving an average of 30% on annual maintenance costs.
