The Dodge Challenger rt top speed is 155 mph. The transmission fluid needs to be replaced every 30,000 to 60,000 miles. Along with fluid changes, terrible sounds will come from the transmission. Old transmission fluid will be awful to the ear. A worn out torque converter will cause a headache. The transmission is one of the most crucial parts of the vehicle. You will come into issues at some point. Hard shifts could come up and that is not good. You may experience shudders. The gears may become stuck. There might be jerking. If the transmission fluid leaks, that needs to be fixed quickly. Delayed shifts will cause acceleration issues. The transmission might slip.
Does changing your trans fluid every 30-60,000 mi apply to an automatic, as well?
Darrell D.
January 14, 2022
Got mine to 159. It says 155 but there's always margin of error
Alex Henry
August 31, 2022
I have a automatic 5.7 liter hemi all stock 2015 Challenger R/T and where it keeps track of top speed on the dash mine says 173MPH that's how fast I personally had it up to and I believe I could have gotten 180 MPH out of it
Mopar guy
July 25, 2023
2017 Challenger R/T 5.7 8 spd auto..speedometer read 178mph,still had not redlined an just let off! Odometer 35,000mi.
Austin
August 16, 2022
I have a 2011 with a tuner and govern turned off I've reached 168 with minor mods
Paul Lassahn
July 3, 2022
2012 Challenger R/T 5. 7 six speed was cruising 155mph @ about 5200 rpm. I'd say it should go at least 160
David W
March 4, 2022
I got 167 in my scatpac
Brian C.
April 10, 2020
The 2017 dodge challenger rt 5.7 V8 has a top speed of 155 mph.
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