What is the recommended transmission fluid change interval for the Volvo S90?

2 Answers
AshleyLee
07/24/25 12:47am
Volvo S90 transmission fluid is recommended to be changed every three years or 60,000 kilometers. After being used for a period of time, the viscosity of transmission fluid decreases, leading to reduced sealing performance. The lubrication effect of the transmission fluid weakens, and without effective lubrication, it can affect the operation of the hydraulic system, causing unstable transmission pressure in the car. The following are the hazards of not changing the transmission fluid for a long time: 1. Failure to change the transmission fluid for an extended period can cause abnormal wear and severe deterioration of the fluid in the transmission. 2. Not changing the transmission fluid for a long time can lead to deterioration and volatilization under high-speed and high-temperature conditions, thereby exacerbating the wear of mechanical components. In severe cases, it can damage internal transmission parts, shortening the lifespan of the vehicle. 3. Prolonged failure to change the transmission fluid can cause the fluid to become granular, blocking oil passages and damaging valve bodies, directly affecting system oil pressure and power transmission. This can result in delayed responses and rough shifting in the transmission.
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DeMaximus
08/10/25 8:31pm
I've been driving a Volvo S90 for several years, and the owner's manual states that the transmission fluid should be changed every 80,000 to 100,000 kilometers, or inspected every 5 years or so. In my actual driving experience, changing it on time makes gear shifts smoother and reduces engine noise. Once, I delayed the change until 120,000 kilometers, and I felt the car wasn't accelerating as powerfully. Later, a check at the shop helped avoid major issues. Don't overlook this routine maintenance—it extends the transmission's lifespan and saves you from costly repairs or part replacements. In city traffic with frequent congestion, wear is faster, so I recommend checking the service records every 70,000 kilometers. Overall, developing a habit of regular maintenance makes driving more reassuring, and with a luxury car like the S90, attention to detail is essential.
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