: Is my OD working?



donhenry@aeiwireless
10-02-07, 04:19 PM
2007 SRX AWD V6.
About what RPM is expected in OD while using cruise control on flat Hwy at 65 MPH?
Mine shows about 2400 RPM. I thought that the auto OD should bring it down to about 1700 RPM? Gas mileage is around 16.8 at 65 MPH.
It has been in for service and had all the timing chains replaced.

Don

MortnCyn
10-02-07, 07:16 PM
I had an '04 & '05 V6 and they are about 2300 to 2400 RPM at 65 and at 72 to 73 2500 RPM. V8 is about 1900 at 73 mph.

c5 rv
10-02-07, 08:05 PM
The 3.6 has a nice flat torque curve above about 2200 RPM, a nice place to cruise.

http://media.gm.com/us/powertrain/en/product_services/2008/HPT%20Library/HFV6/2008_36L_LY7_SRX..pdf

MortnCyn
10-02-07, 08:25 PM
What is the sweet RPM spot for the V8?

c5 rv
10-02-07, 10:31 PM
Good question. Pick a rev:

http://media.gm.com/us/powertrain/en/product_services/2008/HPT%20Library/Premium%20V/2008_46L_LH2_SRX.pdf