Ride-On Mower Winter Storage: What Actually Kills a Cub Cadet Over Winter
Every spring we get the same call: "the mower started fine in October, now it won't turn over." Nine times out of ten, nothing actually broke — the machine just sat all winter the wrong way. A ride-on mower or garden tractor is simpler than a motorcycle engine, but it's just as unforgiving about being ignored for five months.
If you run a Cub Cadet or any other ride-on around Šakiai, here's what actually matters before you close the shed door for the season.
1. Deal with the fuel — don't just leave it
Modern petrol with ethanol behaves the same in a mower tank as it does in a motorcycle tank: it absorbs moisture and starts breaking down into a sticky varnish after a few months sitting still. That varnish is exactly what gums up a carburettor jet and turns a five-minute spring start into an afternoon of cleaning.
Two honest options:
- Drain the tank and carburettor if the machine won't run at all over winter (most common for ride-ons, since almost nobody mows in Lithuania from November to March).
- Fill the tank and add a fuel stabiliser (the same STA-BIL or Motul-type products used for motorcycles work fine here), then run the engine 5 minutes so the treated fuel reaches the carburettor.
Either works. What doesn't work is leaving a half-empty tank of untreated fuel for five months and hoping for the best.
2. Battery — disconnect it or maintain it, never just leave it
A lead-acid battery left connected in an unheated shed keeps powering small parasitic drains (clocks, ignition modules on some models) and slowly discharges. A deeply discharged battery can freeze solid in a hard Lithuanian frost — and a frozen battery is a dead battery, full stop.
Disconnect the negative terminal before storage, or better, hook up a smart maintainer the same way you would on a motorcycle battery. If the battery is already three or four seasons old, it's cheaper to replace it in autumn than to gamble on one more spring start.
3. Clean under the deck
This is the step almost everyone skips, and it's the one that causes the most rust damage. Grass clippings and mud packed under the mowing deck hold moisture against bare metal all winter. Combined with the fertiliser residue in cut grass — which is corrosive — an unwashed deck can rust through in a few seasons where a clean one lasts a decade.
Tip the deck up (most Cub Cadet models have a deck-lift lever for exactly this), hose off the underside, scrape off packed clippings, and let it dry fully before lowering it back down. While you're there, check the blades — a nicked or badly unbalanced blade is worth sharpening or replacing before the season, not after the first mow shreds instead of cuts.
4. Tyres
Same story as motorcycle tyres: pressure drops slowly over winter even without a puncture, and sitting in one spot for months can leave a flat-spotted tyre. Top up to the pressure listed on the machine's tag before you park it, and if you can, park on a board rather than directly on cold concrete.
5. Oil and a quick once-over
Don't change the oil right before storage — old oil sitting in the crankcase over winter is a non-issue, and changing it in spring right before the first real use is better practice. Do wipe the machine down, spray exposed metal linkages and cables with a light protective oil, and store it under a breathable cover rather than plastic sheeting, which traps condensation against the paint.
Fifteen minutes now, no surprises in April
None of this is complicated — it's the same logic as motorcycle winter prep: don't leave fuel to rot, don't leave a battery to die, don't leave moisture sitting against metal. The machines that start on the first turn every spring are the ones that got fifteen honest minutes of attention before the shed door closed.
We stock Cub Cadet spare parts and accessories at our Šakiai warehouse — browse the garden equipment section if you need a battery, blades, or a filter before you put the machine away.

Written by
Kęstutis Jusmila
Workshop LeadFounder of UAB Jusmila. 30+ years working with motorcycles and ATVs. Started in motocross back in the 1990s — today he oversees the entire workshop process in Šakiai.
Information in this article is general. For your specific make/model and any non-standard issue, always consult a certified mechanic.


