JCB Fuel System Care that Prevents Costly Downtime

Clean fuel is critical to the performance and reliability of your JCB Tier 4 engine. Even small amounts of dirt, moisture, or algae (i.e., microbial growth) in the fuel system can lead to clogged filters, injector wear, or hard starting. A few simple steps can help you avoid those issues and keep your machine running at its best. Keep reading to learn how.

Keep the Fuel Tank Full During Downtime

Whenever your harvester or mower sits for an extended period, fill the fuel tank completely. A full tank leaves less room for air, which helps prevent condensation from forming inside. Less moisture means less risk of rust, corrosion, and microbial growth in the tank.

Drain and Clean the Tank Regularly

Over time, water and debris can collect at the bottom of the fuel tank. To keep the fuel system clean, drain and flush the tank at least twice per year. We recommend doing this once just prior to peak season and once after. This helps remove any buildup and keeps the system free of contaminants that can cause injector or filter problems.

Use High-Quality Fuel

Always fill up with clean, high-quality diesel that meets JCB specifications. Store fuel in clean, sealed containers to avoid introducing dirt or moisture. If your equipment is stored for extended periods, consider using a diesel stabilizer to prevent fuel degradation.

Inspect the Fuel System Often

Make a habit of checking for leaks, loose fittings, or signs of contamination during your regular maintenance checks. Catching a small issue early is far cheaper and easier than replacing an injector or pump later.

Protect your JCB Tier 4 engine by keeping the fuel system clean and moisture-free.

  • Keep the tank full during downtime

  • Drain and clean the tank twice per year

  • Always use clean, high-quality diesel

  • Inspect the system regularly

These simple habits go a long way toward reducing fuel-related problems and preventing costly downtime.

Protect your JCB Tier 4 engine by keeping the fuel system clean and moisture-free.

  • Keep the tank full during downtime

  • Drain and clean the tank twice per year

  • Always use clean, high-quality diesel

  • Inspect the system regularly

These simple habits go a long way toward reducing fuel-related problems and preventing costly downtime.

Want more ways to get the most out of your harvester’s engine?

Check out the JCB Engine System Training Guide: Best Practices & Preventative Maintenance article on our support portal.

(If you haven’t set up your free Support Portal account yet, register here.)