Install a dedicated fuel quality management system that automatically tests and purifies the fuel and injects fresh stabilizer. I accidentally mixed petrol with my diesel. This will not affect the fuel's engine performance, but it will make the fuel more hazardous to handle. These changes can degrade combustion and increase wear. The best course of action is to recycle petrol contaminated diesel fuel back to your supplier.
People ask if they can correct the problem by adding more diesel fuel to the blend.
Those who try dilution should have the blend checked by a laboratory before use to be sure it meets specifications. There can be several causes of a plugged filter. For example, low temperature can cause wax crystallization, which can lead to filter plugging if summer diesel is used during cold weather. Dirt in the fuel or excessive microbial growth can also cause filter plugging. Under some circumstances, a fuel with poor thermal stability can plug a filter.