A standby generator set must be maintained and serviced so that it will operate effectively and efficiently when needed. These critical generator sets are relying on stored fuel for dependable operation. The care of fuel does not end when it is supplied to your tank.
The trend toward biodiesel blends is increasing and it will impact your storage limits. In standby applications, where actual fuel use is unpredictable, this could pose a problem. Some diesel specifications allow up to 5% biodiesel content without disclosing the actual amount. Without knowing your biodiesel content, you may run the risk of decreased performance and increased fuel costs. You must determine as best you can the biodiesel content of blended fuel your supplier delivers. This is important when fuel will be stored for an extended period.
Caterpillar recommends a maximum of one year from production for distillate diesel fuel storage. That time limit drops to six months for biodiesel blends. That is because biodiesel blends have increased thermal and oxidative instability compared to straight petroleum distillate diesel fuels. You can perform tests in a laboratory to better determine fuel stability. Analysis can then be used in predicting the optimum months of storage.
A dependable fuel source and structured storage plan is required to protect your fuel investment, and ensure ultimate performance and reliability of your generator set when it is needed most.
Call Ransome Caterpillar to further discuss the use of biodiesel blends and review your plans for reliable fuel storage.