Bobcat S770 M8551 Error Code
M8551 Error Code
DPF Regeneration Needed Inhibit Active is the main cause of M8551 error.M8551 code needs proper lubrication of your transmission's moving parts, it's important to always drive with the right amount of clean fluid. It's good practice to periodically scan over the ground where your truck has been parked and check for signs of fluid leaks.
Tip For S770 Model
It is recommended in cold weather to cycle the glow plugs twice before attempting to start the engine. This will allow for additional heating time for cold weather starting.