Using Proper Fluids in Your vehicle
November 4, 2018
Today, Spartan Tire Brighton is writing about the proper fluids for your vehicle. It's become more complicated with changes in automotive design and manufacturing. It's not that people in Brighton are confused as much as they don't realize how much things have changed in recent years.
If you have questions about the fluids in your vehicle, please don't hesitate to stop by Spartan Tire Brighton. You can find us on 4880 Old U.S. 23 in Brighton, Michigan 48114.
Just give us a call at 810-355-4388 .
Let's take engine oil. Twenty or 30 years ago, there were just a handful of different weights of oil. The weight of an oil is a scientific measure of its properties, particularly its viscosity or thickness.
It was common in those days to use a lighter weight oil in the winter when it's cold outside. That way the oil would be able to splash around inside the engine and protect the parts before it was fully warmed up. And a heavier weight oil would be used in the summer. The thicker oil wouldn't thin out too much in the summer heat and vaporize in the engine.
Modern valve trains have become very complicated with more moving parts and small passages than ever before. The valve train is in the top of the engine, so when the vehicle has been turned off for a while, the oil tends to run down to lower areas. That means the valve train parts are vulnerable at start-up, before the oil starts circulating.
So new weights of oil have been introduced to meet the engineering specifications of these newer engines.
Manufacturers are recommending specific weights of oil. The recommendation is often printed on the oil fill cap. It's certainly in the owner's manual. Of course, Spartan Tire Brighton in Brighton can look it up for you.
It's more important than ever to have the correct weight of oil. The wrong weight could actually harm the engine.
Other fluids are also becoming more sophisticated. In the last few years new types of transmission, power brake fluid and coolant have all been introduced for some of the same reasons as for engine oil.
In addition, vehicle manufacturers are now using a wider variety of materials in these systems. Looking at the cooling system as an example, it used to be that the parts were all made out of steel or iron and the hoses were rubber. Now, some parts are plastic, aluminum or other materials.
So the anti-corrosion additives contained in the coolant, or anti-freeze, need to be different in order to protect the different materials used to make the cooling system. If you use the wrong coolant that wasn't formulated to protect your plastic cooling system parts, they could become corroded and fail. And if you're using the wrong coolant, your cooling system won't be covered under warranty. So it's important to use the right coolant and to not mix different types.
Your owner's manual or service advisor at Spartan Tire Brighton can make sure you're using the right type. You may have heard of universal coolant. Universal, or global, coolant can be added to other types without harmful reactions. That's OK for an emergency top off, but following your manufacturer's recommendation for your vehicle or other auto type is always a safe bet.
In the area of brake fluid, there are a couple of new formulations. It's important to remember that the new ones aren't better than the old ones. They're just different formulations for different vehicles. So if your vehicle calls for DOT 3, using DOT 4 or DOT 5 is not an upgrade. Use the recommended formula.
There are fluid formulations for vehicles with higher mileage. These are special engine oil, transmission fluid and so on that contain additives to condition and restore seals and gaskets in older engines.
They're fine to use as long as they're a variant of the proper fluid. In other words you can use a high mileage engine oil as long as it's also the correct weight recommended by the manufacturer. Same goes for transmission fluid; as long as it's the right type for your transmission.
Spartan Tire Brighton
4880 Old U.S. 23
Brighton, Michigan 48114
810-355-4388
Need Service?
More articles from Spartan Tire Brighton

Keep It Rolling Right
October 23, 2026
Keeping your tires rotated regularly is one of the simplest yet most important maintenance services you can perform on your vehicle. It is where each tire is moved to a different position: front to back, side to side. That rotation helps to ensure your tires wear evenly, which directly impacts sa... More

Why is My Vehicle Overheating?
October 11, 2026
When it comes to your vehicle overheating, the signs can be loud and clear when you have a problem. You may see a thermometer-shaped warning light come on or a temperature gauge whose needle is pointing in the red zone. When either of those happen, its important to take quick action to avoid se... More

Straight Steering Starts Here
October 4, 2026
Wheel alignment is one of those maintenance items you probably dont notice until something doesnt feel quite right. But alignment plays a major role in how safely and smoothly your vehicle handles. If your wheels arent all pointed in the right direction, everything from steering response to tire ... More
