Diesel Truck 4×4 Suspension

Valvoline has actually done extensive studies to prove that if you follow the rule of servicing your differentials and transfer case at 50k miles and then every 30k miles after, you rarely have any mechanical failures. They feel so confident about this that they allow us to offer our customers a limited lifetime warranty on their differentials and transfer case as long as we service their 4×4 system using Valvoline products at the mileage recommendations. We have been utilizing Valvoline products and mileage recommendations for years on our own vehicles and customers’ vehicles with great success.

Moisture is also a huge factor to watch out for when deciding when to perform a 4×4 service. If you are off-roading, driving through deep mud or water, there is a high chance you can get moisture in the differential fluids. This is bad if left over time and highly suggested to service those fluids. Boat launching is another common way to get excessive moisture in your rear differential fluid. If you are using your diesel truck to launch your boat, you need to be checking and servicing that fluid often to avoid driving it around with excessive moisture in the differential fluid.