Originally Posted by
RiaMirage2014
...had the cruise control on
...going up a hill
...doing about 100-110 km/h
...the cruise control suddenly turned off and the drive light started flashing
What driving conditions produce the most heat in a CVT?
Nissan TSB NTB13-095c describes potential high-temperature CVT fluid situations as follows:
1. High RPM and/or high speed driving (4000+ RPMs, and/or 65 MPH or more for 1.0 – 1.5 hours)
2. Driving in ambient temperatures of 96 degrees or higher
3. Climbing steep or extended hills for 6 miles or more
Highway driving is what heats up CVT fluid because it represents an extended condition of continuous high engine torque operating the CVT drive belt. That’s why most Nissan/Subaru/etc. owners experience CVT “limp mode” on the highway. CVT “Limp mode” is when the car’s computer detects high CVT fluid temperatures and significantly reduces engine power until the CVT fluid has cooled to an acceptable level.
According to the service manual, the overheating fluid warning in a Mirage doesn’t come on until the CVT fluid temperature reaches 279F.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)