Starting your vehicle in cold conditions can be a challenge, especially when using E85 fuel, which is a blend of ethanol and gasoline. When temperatures drop to around 20 degrees Fahrenheit, it's important to follow best practices to ensure a successful cold start. E85 can present unique difficulties due to its higher ethanol content, which can lead to a leaner air-fuel mixture. Here are some tips to consider: 1. **Use the Right Blend**: During extremely cold temperatures, consider using a blend of E85 with regular gasoline to improve cold starting performance. This can enhance vaporization and ignition properties. 2. **Check Fuel System**: Ensure your fuel system is functioning optimally. E85 can cause certain materials to corrode, so inspect fuel lines, injectors, and the fuel filter to avoid clogs that could impede starting. 3. **Battery Maintenance**: Cold weather can affect battery performance. Make sure your battery is fully charged and in good condition, as a weak battery can struggle to crank the engine in lower temperatures. 4. **Warm-up Period**: Allow your engine to warm up after starting. Idling for a few minutes will help circulate oil and fuel throughout the engine, reducing wear and improving running quality. 5. **Utilize Engine Block Heaters**: If cold weather is a frequent occurrence in your area, investing in an engine block heater can be very beneficial. This keeps the engine warm and easier to start, reducing stress on the battery and starter. 6. **Regular Maintenance**: Keep your vehicle well-maintained with regular oil changes, spark plug inspections, and air filter replacements, as all these components contribute to smooth starting. With these tips, your Coyote engine or Mustang GT should have no problem firing up even in the challenging conditions posed by a 20-degree environment. Stay informed about how temperature affects your vehicle's performance to enjoy optimal driving conditions.