What Kind of Transmission Fluid Goes in a Semi Truck?

All semi truck drivers should be aware of the type of transmission fluid their vehicle requires. The wrong type of fluid can damage the transmission, leading to costly repairs and downtime. Knowing what kind of fluid to use and when to change it is essential for keeping a semi truck in good working order.

Types of Transmission Fluid

There are several types of transmission fluids available, but the two most common are conventional and synthetic. Conventional fluids are mineral-based and typically cheaper than synthetic fluids.

Synthetic fluids can usually last longer than conventional fluids, although they cost more. The type of fluid used should be specified in the owner’s manual, or you can ask the manufacturer or dealer for advice.

When to Change Transmission Fluid

The frequency with which you should change your transmission fluid depends on how often you use your semi truck. If you drive it every day, then it may need to be changed as often as every 30,000 miles or every year; if it is only used occasionally, then it may only need to be changed every 45,000 miles or every two years.

Benefits of Changing Transmission Fluid

Regularly changing your transmission fluid can improve vehicle performance by reducing wear on internal components and extending the life of the transmission. It can also help prevent sludge buildup that can clog filters and reduce efficiency.

Additionally, by using an appropriate type of fluid, you can ensure that your transmission runs cooler, which reduces stress on all its components.

Conclusion:


Knowing what kind of transmission fluid goes in a semi truck is important for ensuring its performance and reliability over time. The type of fluid specified in the owner’s manual should always be used and changed regularly according to manufacturer recommendations. This will help keep the vehicle running efficiently and extend its lifespan.

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Stephen Dunn