Can I simply say 'fill it up' when refueling a motorcycle?

[Scarlett]

You can simply say 'fill it up'. Precautions for car refueling: 1. When refueling: The engine should be turned off, do not make phone calls or play with your phone, and do not use open flames in the gas station. Do not make phone calls or play with your phone in the gas station. When refueling, always turn off the engine. If there are many people, queue up and be mindful not to cut in line; maintain order. 2. When choosing fuel: Always choose gas stations with better fuel quality and avoid those with poor fuel quality. Using low-quality gasoline for a long time will lead to increased carbon deposits in the engine. Not only should you choose gas stations with better fuel quality, but you should also select the correct gasoline grade.

[IvanRose]

As a mechanic, I've seen too many dangerous cases of fuel tank overflow. Simply saying 'fill it up' when refueling a motorcycle does pose risks. The upper part of the tank has space for storing a vapor mixture, and if you continue to force-fill after the pump nozzle automatically stops, gasoline can overflow through the vent hole. This not only wastes money but, more dangerously, gasoline vapor can easily ignite when exposed to hot exhaust pipes or static electricity. Moreover, there's a distance from the tank opening to the fuel level, and when the nozzle stops, it's already close to truly full—there's no need to aim for absolute fullness. Some older models can flood the carbon canister if overfilled, which is a hassle to fix. I recommend stopping at the automatic nozzle shut-off for safety. I once saw a Yamaha that leaked oil due to forced overfilling, costing 800 yuan to repair.

[DeRonan]

I work at a gas station every day, and we always pay extra attention when motorcyclists say 'fill it up.' Since motorcycle fuel tanks are generally small and positioned high, the fuel nozzle can easily trigger an early shut-off. Often, customers insist on adding a bit more, only for gasoline to spill down the body onto the hot engine, causing white smoke—scaring me into grabbing the fire extinguisher. Don’t underestimate this; last week, a Kawasaki 400 had its wiring burned due to fuel overflow. It’s safest to specify an amount, like '50 yuan.' It’s normal for the fuel gauge not to show full—leaving some room for fuel expansion is the right approach.

[McSophia]

After five years of riding, I've learned some lessons—fueling up shouldn't be done carelessly. Once I asked for a full tank, and the attendant filled it right up to the brim. Right after leaving the station, I noticed gasoline seeping out from the cap gap, and the exhaust pipe was sizzling hot. Scared, I immediately turned off the engine and pushed the bike. Later, a mechanic explained that motorcycle fuel tanks are designed with a special 5% vapor space; overfilling can block the vent holes. Now, I always specify a fixed amount when refueling, like "40 yuan of 95-octane," which is much safer than saying "fill it up." Also, a reminder: the rubber seal on the fuel cap can deteriorate and cause leaks, so regular checks are crucial.