* Lubricity: Pump diesel fuel has additives to improve lubricity (the ability to reduce friction). Home heating oil often lacks these additives, leading to increased wear and tear on fuel injectors, the high-pressure fuel pump, and other engine components. This can result in premature failure of these expensive parts.
* Cetane Rating: Cetane rating measures how easily the fuel ignites. Diesel fuel is formulated for a specific cetane rating optimized for diesel engines. Heating oil often has a lower cetane rating, leading to rough running, hard starting, and potentially incomplete combustion. This can lead to increased emissions and decreased fuel efficiency.
* Additives: Pump diesel contains additives to prevent corrosion, stabilize the fuel, and improve overall performance. Heating oil may lack these crucial additives, increasing the risk of corrosion and other problems within the fuel system.
* Contaminants: Home heating oil is not subject to the same stringent quality control as diesel fuel. It may contain higher levels of contaminants, such as water, sediment, or other impurities that can clog fuel filters and damage injectors.
* Warranty: Using unauthorized fuel will almost certainly void your vehicle's warranty. Repair costs due to damage from using heating oil will not be covered.
In short, the effect of using home heating fuel in your F350 diesel is likely to be significant and costly damage to your engine. The short-term savings are far outweighed by the potential for expensive repairs or even engine replacement. Always use the type of fuel specified by your vehicle's manufacturer.