Chrysler 2009 PT Cruiser Owner's Manual page 230

228 STARTING AND OPERATING
Recommended Shift Speeds
To use your manual transaxle for optimal fuel economy,
it should be upshifted as listed in Table 1.
Table 1 - Manual Transaxle Normal Acceleration and
Cruise Shift Speeds in MPH (km/h)
Engine Mode 1 to 2
Accel-
2.4L
15 (24)
eration
Non-
Turbo
Cruise 15 (24)
For improved performance, your manual transaxle may
be upshifted up to the maximum speeds listed in Table 2
(within legal speed limits).
2 to 3 3 to 4 4 to 5
25 (40) 40 (65) 45 (72)
25 (40) 42 (68) 45 (72)
Table 2 - Manual Transaxle Maximum Performance
Shift Speeds in MPH (km/h)
Engine 1 to 2
2.4L
Non- 30 (48)
Turbo
If you exceed these speeds, you may notice the engine cut
in and out. This is caused by an electronic limiter in the
engine computer. The engine will run normally when
you reduce engine speed.
2 to 3 3 to 4 4 to 5
60 (97) 85 (136) 115 (185)