This Diesel Exhaust Fluid System gives compatible diesel vehicles a complete DEF setup in Farming Simulator 25. You can use DEF, keep an eye on it, move it around, and refill while you get your work done.
It works with Farming Simulator 25’s native DEF fill type and consumer system, so diesel fuel and DEF stay separate. Vehicles without DEF are left alone, and that includes gasoline-powered vehicles.
Features
- Native FS25 DEF consumer support
- Automatic detection for compatible vehicles
- Dedicated DEF HUD gauge
- Independent diesel and DEF tanks
- Native DEF consumption
- Separate DEF refilling
- 10 L DEF Jug
- 280 L DEF Pallet
- 1,000 L DEF IBC Tote
- Dynamic mounting and tension-belt support where applicable
- Transport DEF with compatible liquid carriers
- Clean store integration
- English and German localization
- Optimized models and textures
- Multiplayer supported
10 L DEF Jug
- Capacity: 10 L
- Price: $80
- Handy portable container for small top-offs, service trucks, or emergency refills
280 L DEF Pallet
- Capacity: 280 L
- Price: $1,250
- Farm-shop and fleet-service supply for keeping multiple vehicles topped off
1,000 L DEF IBC Tote
- Capacity: 1,000 L
- Price: $3,200
- Bulk DEF storage for farms, equipment yards, truck garages, and larger fleets
All three containers work fully and are made for use inside the Farming Simulator 25 environment.
Vehicle Compatibility
For the vehicle-side DEF features to work, the vehicle needs the correct Farming Simulator 25 native DEF fill type and DEF consumer system setup.
Your compatible diesel vehicle should have its own DEF fill unit and native DEF consumer.
If a vehicle has no DEF consumer, it keeps working normally and the DEF gauge will not appear.
Compatible non-motorized liquid carriers can transport DEF too when they already support liquids such as water, milk, or diesel. Every third-party vehicle cannot be guaranteed to work, because vehicle mods come from many authors and may use different configurations.
Tested
The release build has been checked for all of these:
- DEF vehicle detection
- Native DEF consumption
- DEF HUD display
- Independent diesel and DEF levels
- DEF emptying
- DEF refilling
- Container interaction
- Store integration
- Compatible liquid-carrier support
- Savegame loading
- In-game operation
The final release build also passed GIANTS Farming Simulator 25 TestRunner 0.9.19, and all 14 test modules passed.
V1.1.0.0
- Added a 5,000 L Bulk DEF Tank
- Stores native DEF
- Can take refills from compatible liquid carriers
- Dispenses DEF straight to compatible vehicles and trailers
- Comes with dedicated store artwork and placeable collisions
- Added a Diesel & DEF Combo Tank
- 25,000 L Diesel capacity
- 5,000 L DEF capacity
- Separate internal storage for Diesel and DEF
- Shared bulk unloading point
- Selectable Diesel or DEF vehicle refill
- Dedicated store artwork and placeable collisions
- Universal DEF support for compatible non-motorized liquid carriers
- Trailers compatible with Water, Milk, or Diesel can also carry DEF
- Improved DEF refill and loading-station behavior
- Updated refill localization
- Cleaned and optimized placeable I3D mappings
- Improved collision setup for the new bulk tanks
- Added proper store-image mipmaps
- Optimized tank textures and removed duplicate assets
- Updated texture compression where appropriate
- Improved clip-distance settings on the new placeable models
- Updated modDesc and version history for current FS25 requirements
- Existing DEF Equipment: The following equipment remains included:
- 10 L DEF Jug
- 280 L DEF Pallet
- 1,000 L DEF IBC Tote
- Compatibility: Uses Farming Simulator 25’s native DEF fill type and vehicle consumption system
- Diesel and DEF remain completely independent
- Existing DEF vehicle HUD and consumption functionality remain unchanged
V1.0.0.2
- Fixed universal DEF support for compatible non-motorized liquid trailers.
- Corrected vehicle specialization registration so DEF support is applied correctly when the game loads.
- Compatible liquid carriers already supporting Water, Milk, or Diesel can now accept DEF too.
- Verified working with the base-game ABI 550 Water Trailer.
- Existing DEF vehicle support, HUD, refill system, containers, and store integration remain unchanged.
- No pricing changes in this update.
