Are you looking to expand your knowledge base about auto repair and learn from the fine team of auto mechanic professionals at Walt's Auto Service in Torrance, CA? Check out our blog, where we delve into all manner of helpful auto repair topics.

Do you have questions? We’ve got answers! We’ve been serving the communities of Torrance, Hermosa Beach, Redondo Beach, Manhattan Beach, Palos Verdes, Hawthorne, Carson, Lomita and Gardena for over 34 years, and we want to empower our customers to be educated about their vehicles. Check us out!

The Role of Engine Coolant in Hot Weather

Maintaining Optimal Performance and Efficiency with Engine Coolant

Maintaining your vehicle's engine is vital, particularly during the summer season. The rise in temperature stresses your engine, raising the possibility of overheating. This underscores how crucial it is to have proper coolant for seamless operation, which Walt's Auto Service knows all too well! Exploring its mechanics and benefits reinforces why having sufficient coolant is non-negotiable for any car owner - especially when temperatures soar!

What is Engine Coolant?

Antifreeze, also known as engine coolant, is a fluid blend that regulates your motor’s temperature. It typically consists of water and ethylene glycol or propylene glycol, with supplements to prevent erosion and enhance productivity. There are distinct variations, such as inorganic additive technology (IAT), organic acid technology (OAT), and hybrid organic acid technology (HOAT), each offering unique benefits.

How Engine Coolant Works

As your engine operates, coolant circulates through it and absorbs any excess heat before sending it to the radiator. This essential function maintains optimal temperature levels for smooth operation while reducing friction and preventing rust on key components. An overheated engine can cause severe damage without proper coolant circulation, translating into costly repairs.

Importance of Engine Coolant in Hot Weather

Your car also feels the scorching heat outside, but luckily engine coolant comes to its rescue. Acting like your engine's trusty friend prevents overheating and potential failure, which can lead to serious damage and inconvenience. With coolant on board, your engine can operate smoothly regardless of how hot it gets.

Signs of Low or Poor Quality Coolant

Occasionally, your vehicle’s indications may suggest an issue with the coolant. Such signs could include a temperature rise displayed on the gauge, detection of a sugary scent emanating from under the hood, or discovery of green, orange, or pink fluid beneath it. Furthermore, rough engine operation might also occur, which indicates that due consideration should be given to servicing your car's coolant system.

How to Check Your Coolant Level

Inspecting your car’s coolant is hassle-free and can prevent potential problems. Once the engine has cooled down, open the bonnet and locate the translucent plastic tank labeled with “coolant” or “antifreeze.” Verify that its level falls between the designated "MIN" and "MAX." If depleted, refill with the appropriate coolant for your vehicle.

When to Replace Engine Coolant

Are you unsure about the timing for replacing your coolant? As a rule of thumb, it is recommended that you do so every 30,000 miles. However, this may differ depending on the make and model of your vehicle and the type of coolant used. Spotting rusty or dirty sediment in your coolant indicates that you should replace it without hesitation. Consistent replacement serves to maintain optimal engine performance levels.

Choosing the Right Coolant for Your Car

Coolants vary in type, and using an inappropriate one might lead to problems. Engine-specific varieties like IAT, OAT, and HOAT have been manufactured for distinct engines. Consult your vehicle's manual regarding the appropriate coolant selection or seek professional guidance if uncertain. Opting for a suitable coolant guarantees optimal engine protection and performance.

How to Replace Engine Coolant

If you know the process, swapping out coolant isn't particularly difficult. It's crucial to wait for the engine to cool down and then identify where its drain plug is on the radiator; place a vessel below it before releasing said plug so that used coolant can be funneled into this container. Once emptied, shut off access with this same drainage valve before pouring fresh fluid. Since there could still exist pockets of air within your system afterward - requiring forcing these areas through by opening up your radiator briefly or "burping" it- these steps might be understandably daunting at first glance. Don’t let uncertainties prevent you from taking action, though! Whether asking questions about how best 'to burp' or curious regarding other repairs offered here at Walt’s Auto Service, team members are always eager and ready when called upon should any issues arise along one's journey towards maximizing vehicle health safely yet efficiently possible throughout ownership either now or hereafter.

Common Coolant Myths Debunked

There are some misconceptions surrounding coolant. First, there is a belief that water can be an adequate substitute for coolant. Despite its temporary benefits, water cannot safeguard your engine from rust and overheating like proper coolant. Another commonly held myth asserts that all coolants function similarly — this simply isn't true! An improper choice could harm your vehicle's mechanics beyond repair. Finally, while some assume their engines never require new coolants to be added, like oil needs regular changing intervals, it will degrade over time. Thus necessitating replacement at certain points down the line just like other mechanical fluids in cars do, too, such as transmission or brake fluid changes every few years depending on driving patterns and conditions faced during usage periods, etc. So don’t overlook such important aspects when caring for vehicles properly.

Professional Coolant Service

Although learning how to inspect and substitute your coolant can be useful, there are times when entrusting the task to professionals is more beneficial. At Walt's Auto Service, we provide comprehensive coolant maintenance services such as checking for leaks, ensuring optimal system functionality, and using appropriate coolants for your vehicle. This saves you time and gives you assurance during sweltering summer days.

Coolant Maintenance Tips for Hot Weather

Maintaining coolant during high temperatures prevents overheating and ensures smooth car operation. It’s recommended to frequently check the level of the coolant and refill it as necessary. Keep an eye on your temperature gauge—if there is a spike in heat, you may need brakes. Also examine hoses and radiators for any leaks or damages. Don't underestimate how far routine maintenance can go towards preventing issues with cooling!


To prevent your engine from overheating during hot weather, it's important to have adequate engine coolant. Consistently keeping an eye on and taking care of your coolant can help you avoid expensive repairs while preserving the quality of your vehicle. At Walt's Auto Service, we provide top-notch services for all your coolant-related needs year-round so that you don't need to worry about damage or ruining performance. Don't forget - regular maintenance is key in protecting the longevity and effectiveness of any car!


Walt’s Auto Service is a great place to be when you need auto repair services with expert auto mechanics you can trust. Over the years, our ethics of honesty, trust, and integrity are what make us one of the most reliable auto repair shops in Torrance and the surrounding areas of Hermosa Beach, Redondo Beach, Manhattan Beach, Palos Verdes, Hawthorne, Carson, Lomita, and Gardena! We are AAA-certified and proud to provide you with the best in-house and nationwide 3-year/36,000-mile warranty in the South Bay area. When you need a steady hand, an eye for detail offered with straight, honest talk, bring your vehicle into Walt's Auto Service.
Please book an appointment or give us a call! We are at 340 Van Ness Ave, Unit A, Torrance, CA 90501.


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