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V8Mustang · 04-22-2003, 07:09 PM

Check for codes. Some say replace the o2s every 60K or so but I've had 3 5.0s with well over that many miles on their o2s and they get good mileage (could be better w/ new o2s I'm sure). They do become less sensitive over time.

04-22-2003, 07:09 PM	#2
V8Mustang Registered Member Join Date: Mar 2003 Location: NC Posts: 64	Check for codes. Some say replace the o2s every 60K or so but I've had 3 5.0s with well over that many miles on their o2s and they get good mileage (could be better w/ new o2s I'm sure). They do become less sensitive over time. __________________ www.CRmotorsports.com Ford Performance Parts