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Old 02-09-2011, 07:28 PM
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Bio diesel fuel system.

Bio diesel fuel system.

Fuel tank. After a dozen tanks of bio drop it and clean it. The debris in the tank just below the sending unit stick to the bottom of it and restrict fuel pressure and flow.
Sending unit. Take out the filters. They restrict flow.
Fuel pump. Get an Air dog fuel pump for good adjustable pressure. Bio's viscosity is thicker so the pressure on the fuel pump needs to be turned up. Plus it has additional fuel and water filters. Make sure to change the filters when necessary. Some vehicles can keep the stock fuel pump.
Fuel bowl. Take out the restriction parts. Keep additional filters and tools in the vehicle.
Fuel pressure gauge. Install a fuel pressure gauge. This will tell how to set and maintain the proper fuel pressure and when the filters need to be changed.
Tuner. Put a tune on the processor. I use the street tune from SCT. Tunes advance the timing and fuel delivery to the injectors. Bio burns hotter (Higher combustion rate). Advancing the timing helps the engine with the higher combustion rate. Fuel delivery helps the flow due to the viscosity change.
1/4 hole. Drill out the holes in the bolts on the engine for the fuel system. Better flow.

Bio diesel breaks down corrosion in the fuel tank and fuel system. Run a few tanks of B5 (5% bio diesel). Then B20. Then B50. Then B99. This helps to not clog up the fuel pump and other parts which can ruin them. Don't need to use any additives with bio diesel unlike older vehicles running on ULSD. And the fuel system stays clean.

Use quality fuel. No water, glycerol, bacteria, low particulates, etc. It should be filtered to 2 micron.

Bio diesel is waste vegetable oil with the glycerol removed. When using waste vegetable oil the glycerol cakes up the fuel system. If the fuel system is cleaned regularly it will not damage the engine. Cleaning the fuel system and running a heater for the vegetable oil is just a pain which is why I use bio diesel.

An indirect fuel system (IDI) is best for running alternative fuels because of the swirl effect in the prechamber. Waste engine oil, transmission fluid or vegetable oil can be used in one of these engines.
Bio diesel is still a great fuel in direct injection (DIT) fuel systems.

Germany and lots of areas in Europe have been using bio diesel for decades with no problems. Millions of gallons used. Its new to the US so there are a lot of people not familiar with it. Most of the problems are due to bad fuel. Use good fuel in the right vehicle and you will have no problems. Because of the 25K plus fuel pressure in the newer vehicles designed to run on ULSD. These vehicles are not good with B99.

You are now not a consumer of the most corrupt product out there which is the reason it exists. Bio diesel is also carbon neutral, the exhaust smells good (don't let the dog lick the hot tail pipe). The vehicle runs quieter and smoother, fires up better.

You don't have to do all these things in order to run bio diesel. They will just help your vehicle run a million miles.
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