Heated Vegetable Oil Fuel System Facts
Heat in tank causes condensation/water. Water in fuel causes bacteria. Heat in tank can cause “waxing” or “drying” which = plugged pipes.
Too much heat on filter isn’t good. Diesel fuel loses its lubricity when hot. Cold vegetable oil is thick. Therefore heat your fuel only when you need to.
Injector pumps have very tight tolerances. Thick oil can seize metal with tight tolerances, especially at high speeds and pressure. Cold diesel in injector pump = cold injector pump even if the engine is hot. Hot vegetable oil pumped into a cold pump = cold oil = thick oil = possible seizing or severe wear of pump.
This truck is equipped with a dual tank vegetable oil fuel system
One tank/fuel system is designed for diesel fuel. The other one is specifically designed for running used vegetable oil.
It starts on pure diesel fuel. When it’s hot enough, it can be switched over to pure vegetable oil. A few minutes before shut-down, switch it back to pure diesel. The basis changes from original is a second tank and fuel system, and a method to switch between the two fuel systems. The vegetable oil fuel system is heated with engine coolant and has larger sized pipes and filters.
Do’s and Don’ts:
Do switch to diesel before shut-down and run on diesel on restart until the engine is fully warm. It gives easier starts, less fuel system wear from cold oil, less gumming of engine, and less gumming, sticking, and corrosion of fuel system parts from prolonged exposure to vegetable oil.
Don’t rev engine right after switching to vegetable oil until the injector pump has warmed up. Extreme pump wear can result even if the engine is hot.
Do use a strong dose of injector cleaner and lubrication fuel conditioner in the diesel system. Also consider using a anti-bacteria fuel conditioner.
Don’t spill vegetable oil without cleaning it up. In time it makes a terrible mess.
Do work the engine hard. Hard working engines run cleaner and have much less trouble with carbon buildup.
Don’t let the engine idle for extended periods of time, especially on vegetable oil.
Do enjoy the ride.
Don’t put dirty oil in your tank
The Down Side To Vegetable Oil
1. you can’t start the car or truck when it’s really cold out on it.
2. It can seize up your injector pump.
3. You have to have a diesel car or truck to make this work.
The Good side To Vegetable Oil
1. It saves you money on gas.
2. It’s fun to find out about how it really work’s.
3. Good for the diner’s to get rid off their old used oil in a good way