I know there is no warning light for when the fluid is low, but how do you tell how full the tank is ? I didn't see anything in the owners manual and the tank is buried in the fender so you can't see the tank. Thanks
You can literally pour an entire gallon in and it's fine, it actually holds about 1.3 gallons in the reservoir. Even low quality washer fluid is good to -20°F, since it's main ingredient is basically rubbing alcohol. If you're afraid of it freezing, buy a cheap bottle of rubbing alcohol and add it to the mix.