o2 Sensor for a '91 302

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Aug 31, 2011 | 01:31 PM

bryyce62

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Fleet Mechanic

Joined: Nov 2004

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From: Northern CA

o2 Sensor for a '91 302

Changing an 02 sensor in my '91 F150 302. Hoping for a little better gas mileage...
Looking at Rock Auto's website there is no less than 13 different o2 sensors to choose from. Ranging in price from $20 to over $50.
Is motorcraft the one? Does it really matter?

Thanks.

Aug 31, 2011 | 02:23 PM

andym

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From: Bonita Springs FL

Bosch is the OEM for motorcraft O2 sensors and they are the biggest name in the O2 sensor business so I would go with them.

Aug 31, 2011 | 02:47 PM

bryyce62

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Fleet Mechanic

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From: Northern CA

Thanks Andy.

Sep 2, 2011 | 12:56 AM

Robertlog

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I put a Bosch 15716 sensor in my '91 about a year and a half ago ... fit perfectly and works fine. Can't say it did anything for my mileage though.

Sep 2, 2011 | 04:15 AM

ymeski56

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From: Long Beach, Calimexiforia

Quote:

Originally Posted by Robertlog

I put a Bosch 15716 sensor in my '91 about a year and a half ago ... fit perfectly and works fine. Can't say it did anything for my mileage though.

Depends on the age/ shape of the one being replaced. Their switching speed slows & they become less accurate w/ use. I replace mine by 60 K miles on them. I'm sure some would say there's more miles left on it, but that's how I roll! I like my MPG's.