teK-- wrote:It's quite strange that you would notice any difference in acceleration going from 16 to 17 wheels; the weight difference should be minimal. Have you checked your tyre pressures? Low tyre pressure will cause more drag and more rolling resistance.
I run 40psi front and 42psi rear, both measured when the car is cold.
As for the thermostat it should last longer than 5 years in most cases but you haven't stated how much the mileage is; also the previous owner may have neglected to change the coolant on time. I replaced my thermostat at 5 years old as a preventative its only a $30.00 part and cheap insurance.
$140.00 sounds expensive. For that price they should be using genuine Subaru Coolant and thermostat (don't use generic coolant), and including a pressure test of your cooling system.
Wow, your tyre pressure very high Jim? The standard on the driver door around 34 max.
The thermostat changing the OEM thermostat, coolant maybe aftermarket, maybe pressure test for cooling system and labor.
I just try to turn around corner 90 degrees at 50-60km/h and after the turn it's like the last time when my car won't go, maybe it's from the clutch or flywheel I think.
But my steering became a bit to the left(not straight) like when I use 16", just did a wheel allignment this afternoon. Is it normal? Since the steering a bit to the left?
If I can't stand with 17" wheels, maybe I will change it again with 16" wheels(even though my standard wheels should be the 17" wheels).
Thanks and really appreciate your advice Jim.