Will this fit on a throttle-body car?
Currently, the answer is no, although we are working on developing a converter that will work for these cars.

What will affect my fuel economy?
The Flextune bi-fuel converter has no effect on the operation of your vehicle while in the “gasoline” mode. Therefore, your fuel economy should remain the same in this mode. In the “ethanol” mode, your fuel economy will vary based on the blend. (ie E85 85% ethanol, 15% gasoline or E100, which is unblended) Your fuel economy will largely be affected by the condition of your engine, how well tuned it is, and your selection of motor oil, and/or additives. Your driving habits also play a role in your fuel economy, along with other factors such as wheel alignment, tire condition, and pressure. The single most influential factor is your engine design – the size, the compression ratio, and the type of aspiration. In other words, your fuel economy will vary from car to car.

How can I increase my fuel economy while using ethanol?
You can increase your fuel economy by making sure that your car is well-tuned and using quality motor oil and/or additives. You need to ensure that your vehicle alignment is correct, and your tire condition and pressure are correct. You can also alter your driving habits; reducing idle time, quick takeoffs, and high-speed driving.

Do you have a bi-fuel converter that will work on carbureted cars?
No, Flextune bi-fuel converters are currently designed for multi-port fuel injected cars.

Can I convert my carburetor to use ethanol?
Adapting your carburetor to use ethanol will require replacing or oversizing your jets. This should be done by a trained technician. The downside to this is that your car will only be able to run on ethanol. If you attempt to use gasoline after the jets have been oversized, your car will run poorly, and your fuel economy will be terrible.

Can I transfer my Flextune bi-fuel converter to another vehicle?
This will depend on a number of factors. The car you are transferring the converter to must have the same ohms resistance, polarity, and connector type as the car from which it came in order to ensure proper operation. We do not recommend transferring the bi-fuel converter, due to a number of factors including potential damage to the unit during removal.

Is this something I can install myself?
Our bi-fuel converters are designed for the simplest installation; however, depending on your make, model, engine size, and mechanical skill level, you may want to consider a professional technician for installation. Some models will install quickly, and others can take hours. The number one determining factor is the accessibility of the fuel injector connectors. (ie. The GM 3.1 liter engine requires the removal of the upper plenum in order to gain access to the injector connectors. Other engines will be similar.)

If you don’t have my exact connector type, can I still use your Flextune bi-fuel converter?
Yes, in most cases a qualified service technician can hardwire the Flextune bi-fuel converter to your car, regardless of your connector type. You will still need to ensure the ohms resistance and polarities are correct. The polarity can be manipulated by the trained service technician during the hardwire installation.

Will this work on my diesel engine?
No. The Flextune bi-fuel converter was not designed for the diesel engine.