1996 Ford F250 Owner's Manual - Page 341

2. You can brighten the wheels, even after years of use, with readily-available buffing compounds, such as Ford Custom Bright Metal Cleaner or equivalent. Follow the buffing instructions that come with the compound. When tires are removed, the entire wheel must be cleaned and inspected. Remove any soil or oxidation products from the tire side of the rim with a wire brush. Aluminum alloys resist corrosion. This is why your Forged F-350 Aluminum Wheels never need sanding or painting. However, certain environments can lead to corrosion: salt, chloride compounds used for snow removal and highly alkaline materials. Wash corrosives elements off the wheel before they have time to react. 3. 4. Battery Your vehicle may have a Motorcraft maintenance-free battery. When the original equipment battery is replaced under warranty, it may be replaced by a Motorcraft Low-Maintenance Battery. The Low-Maintenance Battery has removable vent caps for checking the electrolyte level and for adding water, if necessary. The electrolyte level should be checked at least every 24 months or 24,000 miles (40,000 km) in temperatures up to 90˚F (32˚C) and more often in temperatures above 90˚F (32˚C). Keep the electrolyte level in each cell up to the level indicator. Do not overfill. If the level gets low, you can add tap water to the battery, provided the water isn't hard or doesn't have a high mineral or alkali content. However, if possible you should refill the battery 342