| I and many others have converted their gasoline | | | | 6. Since E85 has very good cleaning properties as |
| car to run on E85 (ethanol fuel). This is a guide on | | | | well as leaving behind a rest-product of water, it is |
| how to do the same thing. | | | | cleaning the fuel system and it will keep the |
| First of all, what is E85?: | | | | injectors nice and clean. The combustion |
| E85 consists of 85% ethanol and 15% additives. | | | | chambers, valves, ports and the exhaust will also |
| The additives vary a lot depending on where you | | | | be clean(er), almost like the car had water |
| live and time of the year. But roughly, the 15% | | | | injection. |
| additives is mostly made up of gasoline, additives | | | | 7. In most cases it will cost less $/mile to run on |
| that helps the engine to make a complete burn, | | | | E85. |
| additives that helps the engine start when its cold | | | | 2. Since cars running E85 requires roughly 30% |
| and additives to color the fuel and the flame (so | | | | more fuel, a tank of E85 will not get you as far |
| you know what substance it is, and also to help | | | | as a tank of gasoline and you will have to refuel |
| you see that it is really burning). | | | | more often. This is often disregarded by E85 |
| Facts about E85: | | | | users who learn to live with it because of the |
| 1. It is not corrosive to the fuel system or the | | | | economical gains. |
| engine. This is a myth and ethanol is often | | | | And now: How to convert to E85 |
| confused with methanol, which actually have | | | | 1. The advanced way, tuning and re-flashing the |
| corrosive properties. Some models before 1988 | | | | ECU to optimize it for E85. |
| on the other hand may have some parts that is | | | | Advantages: |
| not ethanol resistant. | | | | * The car will be optimized for E85. |
| 2. It is not as harmful to the environment as | | | | * It will be very fuel-efficient. |
| gasoline or any other petroleum products for that | | | | * More power at the same boost level. |
| matter. Ethanol is made out of renewable energy | | | | 2. An electronical device (piggyback device) that |
| resources such as crops and trees to name a | | | | you plug in between the injector wires and the |
| few things. The carbon dioxide that an ethanol | | | | injectors. It will expand the injector pulsewidths by |
| powered car emits is not contributing to the | | | | approximately 30% and it will have the possibility |
| greenhouse effect, but is taken up by the plants | | | | of both running on gasoline and E85 by flicking a |
| and is being "re-used". The carbon dioxide then | | | | switch. |
| goes around in a closed loop. Gasoline on the | | | | Advantages: |
| other hand is made from oil that comes from old | | | | * Easy to install and use. |
| dinosaurs, plants and other stuff 100 000 of | | | | * Has the capability of both gasoline and E85. |
| years ago, and it doesnt take part in the closed | | | | 3. An adjustable fuel pressure regulator. |
| loop but only adds to the amount of greenhouse | | | | Advantages: |
| gasses. Ethanol is also easily bio-degradeable if it | | | | * The car ECU will adapt to the changes (if it is |
| should leak into our environment. | | | | equipped with an O2-sensor). |
| 3. E85 is 104-105 octane and therefore its more | | | | * Can be used if you want to blend gasoline and |
| knock-resistent and can tolerate more boost or a | | | | E85. You will always have to keep track of the |
| higher CR. | | | | percentual blend of gas/E85 though. If you want |
| 4. E85 cools the intake charge more and | | | | to run a blend of gas/E85, for simplicity, decide a |
| therefore its more knock-resistent and can | | | | percentual blend and stick to it. |
| tolerate more boost or a higher CR. And it also | | | | 4. Bigger injectors. |
| makes the engine run cooler and to some degree, | | | | Advantages: |
| even safer. | | | | * The car ECU will adapt to the changes (if it is |
| 5. E85 is in most cases at least 5% more effect | | | | equipped with an O2-sensor). |
| than gasoline at the same lambda value (up to | | | | * Cheap (at least if you buy some used ones |
| 25% more efficient on some cars optimized soley | | | | from a junk-yard or pick-n-pull). |
| for E85). | | | | |