Quick answer:
The Cub Cadet 518 tractor fuel tank capacity found is 3.5 gal (13.2 L). Fuel type is diesel.
Fuel tank3.5 gal (13.2 L)
Fuel typediesel
5-gal cansone 5-gal can
Full fuel weightabout 25 lb (11 kg) of diesel
Cub Cadet 518 Fuel Tank Specs
| Fuel tank capacity | 3.5 gal (13.2 L) |
|---|---|
| Fuel type | diesel |
| Engine model | 14 HP Kohler |
| Engine displacement | 31.1 cu in (0.51 L) |
| Fuel tank size class | medium mower fuel tank |
| 5-gallon fuel cans | one 5-gal can |
| 10-litre fuel jugs | about 2 x 10-L jugs |
| Estimated full tank fuel weight | about 25 lb (11 kg) of diesel |
Fuel Tank Benchmarks
Fuel tank capacity benchmark
Benchmarks are general reference ranges for lawn and garden tractors and mowers.
Cub Cadet 518 Fuel Tank FAQ
| Fuel tank capacity | The Cub Cadet 518 tractor holds 3.5 gallons, which is about 13.2 litres. Use that as the refill figure when planning diesel storage, fuel cans or workshop servicing. |
|---|---|
| Fuel type | The fuel type found for the Cub Cadet 518 tractor is diesel. Match the fuel type to the operator manual and the engine fitted to your exact model. |
| Fuel tank size class | The Cub Cadet 518 is listed as having a medium mower fuel tank based on the fuel tank capacity found. |
| Fuel cans needed from empty | From empty, the Cub Cadet 518 needs one 5-gal can or about 2 x 10-L jugs to cover a full refill. |
| Estimated full tank fuel weight | A full tank on the Cub Cadet 518 adds about 25 lb (11 kg) of diesel before allowing for the tank itself. |
| Engine specs found | Engine specs found for the Cub Cadet 518 include 14 HP Kohler, 31.1 cu in (0.51 L). |
| Fuel refill planning note | Plan around roughly 3.5 gal of fuel for a full refill. This is best treated as a short-job or frequent-refill tank. Tank class: medium mower fuel tank. Fuel type: diesel and gasoline. |
Official information note
Mistakes do happen. Check the operator manual, service manual and official cubcadet.com website for official fuel capacity specifications before refuelling, servicing or buying parts.




