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Old 05-21-2013, 07:47 PM   #1
emomorales
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focus 13 sedan 235/40 18 pressure

What is the factory set tire pressure for the 235/40 18 on the 12/13 focus sedan? I just put on new wheels, from 15's to 18's. The 15's were 35 psi.......that seems a little soft for 18s


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Old 05-21-2013, 08:27 PM   #2
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Originally Posted by emomorales View Post
What is the factory set tire pressure for the 235/40 18 on the 12/13 focus sedan? I just put on new wheels, from 15's to 18's. The 15's were 35 psi.......that seems a little soft for 18s
39 psi
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Old 05-21-2013, 11:18 PM   #3
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Even with stock 215 50 17 wheels i have on my SE I run 40psi rear and 45psi front.
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Old 05-22-2013, 04:52 PM   #4
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My 2013 tire guide is telling me a 2012/13 the psi for a 195/65R15 91H was 35 F/R.
But if you got a Titanium w/Handling package and 235/40R18 95W the door placard would tell you to run 30 psi F/R. I'm sure running a bit more won't hurt much except for some tire wear, but these are the numbers from the factory...
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Old 05-22-2013, 05:53 PM   #5
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Quote:
Originally Posted by jsr72 View Post
39 psi
^ This.
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Old 05-22-2013, 07:51 PM   #6
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Thanks, I ran 39 psi today seemed to ride better. Had a little hop in the rear going around a circle so I may drop a little in the rear tires, but overall a better ride.....thanks again.
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Old 06-17-2013, 11:45 AM   #7
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Even with stock 215 50 17 wheels i have on my SE I run 40psi rear and 45psi front.
What for?^^^^^^^^^^^ To add more spring pressure?
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Old 06-18-2013, 12:22 PM   #8
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Mileage or Auto x'ing, those are my guesses.
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Old 06-18-2013, 12:53 PM   #9
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What for?^^^^^^^^^^^ To add more spring pressure?
gotta protect them wheels!
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Old 06-18-2013, 06:02 PM   #10
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I have handling package and door says 39psi for 235/40zr18.

Running 45 on a 215/50r17 is going to give poor tread wear. 35 is the recommended psi for that size.
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