Cold weather doesn’t just slow down your mowing schedule — it also affects the health of your mower’s engine, especially if it’s not stored or maintained properly during the off-season. The team at Mobile Mower Techs often sees damage caused by freezing temperatures, stale fuel, and inadequate winter preparation. Knowing how winter affects small engines can help you avoid costly repairs down the road.
Oil Thickens in Low Temperatures
When temperatures drop, oil thickens and circulates less efficiently. This can cause extra strain on the engine during startup and lead to internal wear if the mower is forced to run before the oil flows freely. Using the correct oil type for your mower and storing it in a dry, moderately heated space can help prevent this.
Fuel Systems Can Clog or Corrode
Fuel left sitting in your tank over the winter can break down and form varnish or gum in the carburetor and fuel lines. In some cases, fuel tank moisture can cause corrosion. Mobile Mower Techs recommends using a fuel stabilizer or draining the fuel system before long-term storage.
Batteries Lose Power Faster
If your mower has a battery, cold temperatures will drain it faster than normal. Leaving a battery exposed to winter weather can reduce its lifespan or cause it to fail. Remove the battery and store it indoors to preserve its charge and extend its life.
Condensation Creates Rust and Electrical Issues
Moving a mower from a cold environment to a warm one — such as from an unheated shed to a garage — can cause condensation inside the engine and fuel tank. This moisture can lead to rust, corrosion, and even short circuits if left unchecked.
Belts and Rubber Parts May Crack
Rubber parts, such as belts and seals, become more brittle at freezing temperatures. If your mower is exposed to cold for extended periods, these components may crack or lose flexibility, which can affect spring cutting performance.
Contact Mobile Mower Techs Today
Protect your mower from cold-weather damage. Contact Mobile Mower Techs to schedule a winter inspection or maintenance service and keep your equipment running strong.