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Which Transmission Oil Grade is Used in Mostly Used Sports Cars?

If this question has popped in your mind, then you already might have a hunch that you cannot just use any transmission oil in high-performing used sports cars. The best buy here pay here no credit check dealership will only use that transmission oil with proper grades as anything else can seriously compromise the entire transmission system. Expensive repairs will be the least of your worries if the transmission box malfunctions while cruising on the highway. You buy sports cars to rev its engine and any minor error can become life-threatening.

So, let’s answer your query as to which transmission oil grade should you use in your sports car. And then explain a bit of the technicality so that you clearly understand the differences between the grade you should buy and others available in the market.

The right transmission oil grade

The precise answer will be available in the owner’s manual that you get with your car. Avoid buying vehicles from buy here pay here no credit check car lots who do not give you the owner’s manual with the car or make arrangements for the same. The engine’s designer or the manufacturer best knows which transmission grade oil you should be using in your sports car. Hence, stick to the specifications mentioned in that handbook.

However, if you want the quick answer, heavy-duty or high-performance vehicles like sports cars and pickup trucks generally require GL-5 graded transmission oil, as per the specifications of the American Petroleum Institute. Medium-sized vehicles like sedans and SUVs can do with GL-4 which is most commonly available in the market.

What is so special about GL-5?

Transmission oil generally goes into the gearbox of your used sports car. This is why it is often called gear oil interchangeably. And in the gearbox, one metallic gear brushes against other metallic gears almost constantly which produces friction, heat, and wear and tear. Transmission oils act as the necessary lubricant. They also serve as coolants that disperses heat and have to withstand immense pressure as the gears interlock with each other. As obvious, any random ordinary gear oil cannot carry out these functions effectively and may lead to that wretched malfunctioning. GL-5 graded transmission oils have all those required features. The viscosity is around 5W/30 that enables the oil to retain its thickness under extreme temperature conditions as well which helps to provide adequate lubrication. Heat resistance is just right to prevent evaporation during excessive heating in sports cars. And the pressure withstanding capacity is high enough to offer stability under high speeds. Hence, GL-4 can never be a substitute for GL-5. And you cannot use transmission fluid with transmission oil interchangeably in your used sports car.

Keep referring to the manual

It is ultimately the guidebook of your car. Like the oil in your tank, you need to replace your transmission oil as well. And there is a right time to do it and a wrong time. Keep referring to your owner’s manual to understand everything you need to know about transmission oils and consult with your dealer if you have further queries. To reiterate, the best no credit check cars for sale will come with the manual. If not, make sure to download an electronic version with the dealer’s help. Follow the instructions, maintain your sports car, and enjoy your vehicle without any safety concerns.

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