Transmission Flushes & Fluid Replacements. Help keep your gears shifting smoothly – with transmission fluid replacement services from Valvoline Instant Oil ChangeSM. skilled technicians can perform this service in about 20 minutes – while you wait in the convenience of your car.RDX had not had a flush in 150,000 miles so I did a transmission flush at Valvoline.
I expect 300,000 miles of service. I use top tier fuel at costco 1/2 87octane and 1/2 93octane. Also