Can Antifreeze Be Mixed?

2 Answers
HarrisonLee
07/28/25 7:56pm
Antifreeze should not be mixed, as the original solution is a high-concentration ethylene glycol-based antifreeze, and its freezing point varies with the concentration of ethylene glycol in the aqueous solution. The method for adding antifreeze is as follows: 1. Unscrew the radiator cap, open the radiator drain valve, and drain the antifreeze; 2. Insert a rubber tube into the radiator filler port and flush the engine cooling system with tap water; 3. After draining the water from the cooling system, close the radiator drain valve; 4. Unscrew the reservoir cap and add antifreeze until the liquid level reaches the MAX mark; 5. Tighten the reservoir cap; 6. Start the engine and let it idle for 2 to 3 minutes, then unscrew the radiator cap to allow the cooling system to expel some air. The antifreeze level will drop, and you should then top it up to the MAX mark again.
Was this review help?
1
3
Share
GarrettRose
08/12/25 12:47am
I've been driving for over 20 years, and you definitely can't mix different antifreeze types - it's no trivial matter. I remember once my neighbor tried to save money by mixing old green brand-name antifreeze with newly purchased red antifreeze. Within days, his car's cooling system developed issues - sediment buildup clogged the pipes and the engine nearly overheated to destruction. Turns out different antifreeze types (like ethylene glycol-based and organic acid-based) have incompatible chemical compositions. Their reaction corrodes metal components and forms gel-like substances that drastically reduce cooling efficiency. Now I strictly follow the manual, using only matching colors - if it's green, stay with green throughout. Never experiment randomly. In emergency shortages, you can temporarily top up with distilled water, but must replace it completely soon after. Best practice is annual replacement or checking fluid level/clarity before long trips. Never skimp on this - repairs cost far more. Developing this habit protects your engine, ensuring worry-free and safe operation.
Was this review help?
1
4
Share
Expand All
More Forum Discussions

How often should the spark plugs be replaced for Mazda Axela?

Mazda Axela spark plugs should be replaced every 40,000 kilometers. Methods to determine if spark plugs are damaged: Remove the spark plugs and observe them. The condition of the spark plugs can be judged based on their appearance and color. Normal spark plugs have an insulator skirt and electrodes that appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode burn. If the spark plugs are covered with oil or deposits but are not damaged, they can continue to be used after cleaning off the oil and deposits. If the spark plugs are severely damaged, with signs such as blistering at the top, black streaks, cracks, or melted electrodes, the cause of the damage should be identified. After troubleshooting, replace the spark plugs with new ones. Additionally, if the spark plugs appear black as if smoked, it indicates that the wrong heat range was selected or that the air-fuel mixture is too rich, or that engine oil is leaking into the combustion chamber.
2
3
Share

What is the tutorial for replacing the battery in the Mercedes GL420 diesel version key?

Mercedes GL420 diesel version key battery replacement tutorial is: 1. Remove the mechanical key; 2. Insert the mechanical key into the slot at the paddle position and pry upwards with force to pop open the back cover; 3. Take out the depleted old battery and replace it with a new one. The functions of car keys are: 1. Close windows after turning off the engine, windows will automatically rise and close; 2. Convenient for finding the car in parking lots; 3. Automatically open the trunk; 4. Remote window opening. Types of car keys: mechanical keys, remote keys, touchscreen LCD keys, smart wristband keys. Precautions for using car keys: 1. Do not place them together with electronic devices; 2. Do not expose the key to high temperatures or direct sunlight; 3. Do not use batteries of different power. The method for replacing the key battery is: 1. Take out the car key; 2. Use a flat-head screwdriver to insert into the gap on the side of the key and open the key cover; 3. Take out the battery and replace it.
6
0
Share

How to activate the one-touch window lift hidden feature in the 2021 CR-V?

To activate the one-touch window lift hidden feature in the 2021 CR-V, press and hold the lock button for more than 3 seconds until all windows rise and close completely. Then, press and hold the unlock button on the key for about 3 seconds to synchronously lower all four windows. Below is an introduction to the 2021 CR-V: 1. Design aspects: The overall silhouette of the rear end appears quite robust. In terms of details, the newly designed inverted T-shaped taillights and the chrome trim strip spanning the rear enhance the vehicle's horizontal visual width, making the design memorable. The 1.5T gasoline model features a dual-exhaust pipe layout with silver lower bumper guards, giving it a sporty vibe. In contrast, the hybrid model adopts a concealed exhaust pipe design to highlight its fuel-efficient and economical characteristics, presenting a more refined appearance. 2. Material aspects: In terms of materials, the new model meets the expected standards for this segment, combining soft-touch materials, dark-colored trim, and wood-grain imitation panels for an overall premium feel. The dashboard is equipped with a 7-inch display, and the floating-style design is much more contemporary compared to the current model. The HondaCONNECT infotainment system is also available in certain trims, offering features such as real-time navigation, online information, and emergency call services.
2
3
Share

What to Do When the Car Air Conditioner Drain is Clogged?

Here are the solutions for a clogged air conditioner drain: 1. First, turn off the power: Use a Phillips screwdriver to open the front panel and partition, exposing the condenser and drain tray. 2. Next: Fill a mineral water bottle with water and flush the drain pipe along the tray several times to see if it can be unclogged. If not, use a thin wire to slowly unclog it, remove the blockage, and then flush with water until the drain is clear. 3. Finally: Reassemble the partition and panel in the reverse order of removal. Additional information: 1. Sunroof Drain Hole: There are usually four sunroof drain holes, one at each corner of the sunroof. These can be easily seen when the sunroof is opened. Each drain hole is connected to a soft tube. Leakage often occurs because these drain holes are blocked by leaves or debris, preventing water from draining. 2. Door Drain Hole: Normally, the fit between the window glass and the seal is not perfect, so rainwater naturally flows into the door along the window glass. This is when the door drain hole is needed to drain the water. The door drain hole is located at the very bottom of the door and is usually hidden by the door seal, making it hard to see. 3. Engine Compartment Drain Hole: The engine compartment drain hole is generally located near the air conditioner intake. This area is prone to being blocked by fallen leaves or debris, causing poor drainage. There are many wire harnesses in the engine compartment, and prolonged exposure to rainwater poses significant safety risks.
10
2
Share

Does the Mercedes-Benz E300L have a standing emblem?

The Mercedes-Benz E300L has a standing emblem. Safety features of the Mercedes-Benz E300L: Pre-Safe® System; The PRE-SAFE® preventive safety system can be activated approximately 200 milliseconds before an accident occurs and automatically responds, ensuring that seat belts and airbags function at their maximum effectiveness during a collision. Once it detects a potential accident risk, such as severe oversteering, understeering, sudden steering movements, panic braking, or emergency braking, the relevant protective measures are instantly activated: automatically closing the sunroof and side windows, tightening seat belts, and adjusting the electric seats to a more suitable position, thereby reducing the impact force on the head and neck. After the danger is resolved, the side windows automatically reopen, the seat belts release, and the seats return to their preset positions, ready to act again if necessary. Attention Assist System; The standard-equipped driver attention assist system is automatically activated when the vehicle speed reaches 80-180 km/h. The system continuously monitors and automatically determines whether the driver is fatigued or distracted through over seventy preset procedures. If the system determines that the driver's condition compromises driving safety, it will emit an audio warning signal and display a "Please take a break" message on the instrument panel. This forward-thinking innovative technology developed by Mercedes-Benz for driving safety gives the new long-wheelbase E-Class sedan a unique "perception" function, ensuring driving safety. Airbags; With a focus on passive vehicle safety, the new long-wheelbase E-Class sedan is committed to providing users with comprehensive safety equipment. In the event of an accident, nine airbags deploy within milliseconds, including two adaptive airbags (driver and front passenger), one knee airbag (driver), four side airbags in the front and rear seat backs, and two large window airbags that extend from the A-pillar to the C-pillar in the event of a side collision. Energy-saving and environmental protection aspects of the Mercedes-Benz E300L: Optimized aerodynamics; By smoothing the chassis and resealing many interfaces, the drag coefficient of the new long-wheelbase E-Class sedan has been reduced by seven percent from the standard version's 0.27 to just 0.25. Low-resistance tires; The optimized low-resistance tires on the new long-wheelbase E-Class sedan reduce rolling resistance by seventeen percent. Reduced vehicle weight; The new long-wheelbase E-Class sedan uses aluminum alloy materials to reduce body weight. Optimized transmission and fuel efficiency; The 1.8L four-cylinder engine employs methods such as increasing the compression ratio, reducing CO2 emissions, and enhancing turbo technology to improve operational efficiency, ensuring that power and torque remain unchanged or even increased while further reducing displacement and emissions, achieving environmental and energy-saving goals.
14
2
Share

What is the process for scrapping a car?

The process for scrapping a car is as follows: 1. Fill out an application form at the business department of the vehicle dismantling factory: The vehicle owner must present their ID, vehicle registration certificate, vehicle license, and license plate to the business department of the vehicle dismantling factory to fill out the "Application Form for Vehicle Suspension, Resumption/Cancellation of Registration." They then wait for notification at the license management counter to pay fees and surrender the license plate. 2. Apply at the registration acceptance counter: Apply at the registration acceptance counter, where a "Vehicle Scrapping Notice" will be issued for vehicles that have reached the scrapping age limit. For vehicles that have not reached the scrapping age limit, the vehicle inspection counter will determine if they meet the scrapping standards and issue a "Vehicle Scrapping Notice." 3. Deliver the vehicle for dismantling: The vehicle owner chooses a qualified recycling company to deliver the vehicle for dismantling, using the "Notice." 4. Dismantle the vehicle and take photos: The recycling company dismantles the vehicle and takes photos after verifying the "Notice." The engine must be separated from the vehicle, the engine block must be broken, and the frame (chassis) must be cut. 5. Verify and sign the scrapping registration at the vehicle inspection counter: The vehicle owner submits the "Change Form," "XX Province Updated Vehicle Technical Appraisal Form," "Scrapped Vehicle Recycling Certificate," and photos of the dismantled vehicle to the vehicle inspection counter for verification and signing. The license and certificate are then reclaimed, and the scrapping registration is processed according to regulations after approval.
19
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.