ACDelco 10-4049 - WS (World Standard) Automatic Transmission Fluid - 32 oz

Signs of Wear & Troubleshooting

• Causes of transmission fluid degradation include overall thermal stress, mechanical shearing, and contamination.
• Mechanical shearing affects the fluid's viscosity modifiers, causing the fluid to thin.
• Common sources of contamination include metals and other engine fluids.
• Coolant contamination is particularly harmful and usually requires a complete overhaul or even replacement of the transmission.
• Signs that transmission fluid should be replaced include: transmission grinding or making strange noises, problems shifting gears, gears slipping, vehicle 'surging' (lurching forward or falling back), delays in vehicle movement, and/or miles driven since last fluid change exceed recommended limit.

Good Maintenance Practices

• WS-ATF Automatic Transmission Fluid is not compatible with any other ATF type fluids.
• Transmission fluid should be replaced when it becomes contaminated.
• Anything but transmission fluid in the transmission is considered a contaminant.
• Always use the recommended type of transmission fluid in your vehicle, as referred to in your owner's manual.
• Typical fluid change intervals for automatic transmissions range from 60,000 to 100,000 miles depending on the severity of the usage. See your owner's manual.
• In addition to fluid replacement, it is important to regularly check your transmission fluid level.
• A low transmission fluid level can cause the vehicle to shift improperly or not at all.
• Stay vigilant - warning signs of low transmission fluid may not appear until serious damage has already occurred.