Time for a tune up?
#22
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Join Date: Jul 2006
Location: Tulsa,OK
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wont cost much, just get some gear oil. I did mine around 100,000 and it came out really dirty, but after i changed it i got better MPG and the whole thing just felt like it was driving better.
#33
Contributing Member
You can't tell by just looking at an O2 sensor's tip if it's bad or not, you need to see the signal on an OBD scanner. If it gives you a nice sine wave, doesn't throw any CELs and you're getting decent gas mileage, chances are it's still ok.
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