The Chevrolet Tahoe 5.3 liter engine has a coolant capacity of 16.8 quarts. This vehicle uses Dex-Cool orange colored antifreeze or coolant. You will need to purchase at least 16 quarts to complete a full refill.

Capacity: 6.4 quarts. (with filter)After refill check oil level.

Antifreeze/Coolant Prestone 1 Gallon Yellow 50/50 Coolant/Antifreeze.

prestone yellow

DEX-COOL is a specific type of antifreeze, found in select brands of coolants, created using organic acid technology. The manufacturers as well as General Motors have claimed that DEX-COOL can extend the service life and function of your vehicle.

Cooling systems that use Dexcool exhibit more acid buildup and rust in the system when the coolant level gets low and oxygen is allowed to enter the system. The acid eats away at head gaskets and intake gaskets. Rust builds up in the system, inhibiting coolant flow, which causes overheating.

If the DEXCOOL is not completely removed from the cooling system, harmful interaction between coolants can cause major issues. Mixing DEXCOOL with standard/regular antifreeze often causes a jelling of the cooling system which causes a loser of cooling capacity which leads to major over heating.

But over the years we’ve become accustomed to using cooling system wetting agents, as they’ve been proven to work almost every time. Unlike ring sealers in a can and other mysterious leak sealing products that never seem to work, cooling system additives generally do work.

When mixed together they can form a thick, jelly-like substance that can completely stop all coolant flow which can lead to overheating. As the coolant stops flowing, other problems can occur as well such as happens with radiators, water jackets, and even heater cores. The water pump may overheat and stop working.

The truth is, color is not a reliable predictor for what type of coolant you have. For example, OAT coolants are usually orange, yellow, red or purple. Then the older IAT coolant is green. Coolants that manufacturers sell can confuse matters even more, like Honda’s blue coolant.

Motorcraft Orange is DexCool.

Alternatives to the Motorcraft orange antifreeze, Focus ST spec WSS-M97B44-D2 that are safe to use. Bottom line is Prestone DexCool® is a safe and readily available alternative to Motorcraft. Other alternatives are certainly available (e.g., Zerex, Peak, etc.)

Firstly, Dex-Cool and traditional anti-freeze don’t mix well. Though they can work together in a pinch, after extended use, they can react and create a gel, which can be very damaging to multiple components of your cooling system.

You will not have any issues by using Prestone Extended Life Antifreeze/coolant in your vehicle. Prestone is guaranteed for all cars and can be mixed with any other colour of coolant/antifreeze, making it the best choice for you. …

Motorcraft Orange coolant is OAT (organic acid technology) based for extended drain intervals, and it doesn’t mix well with basic green/ gold coolant in terms of the protection, nor the relationship to the metals inside the cooling system.