Used to almost exclusively buy regular gas at a nearby Gulf station for my 2004 GMC Sierra v8 which called for regular grade fuel. In less than 60,000 miles i replaced 3 oxygen sensors. (The v8 actually had 4 oxygen sensors.) While Gulf is a name brand fuel in my area, it is not a top tier fuel. Thus it may lack detergent additives. I subsequently learned that fuel quality and lack of cleaning agents impacts various engine components, including O2 sensors.
In light of some of the above blog comments, suggest you check out below comments from a BMW service shop article :
“How can your choice of gas affect your RESULT IN A FAILED EMISSIONS TEST”
“Another part of your car that can be affected by your choice of gasoline is the oxygen sensor. This small but vital component monitors how much oxygen is in your car’s exhaust, helping to increase performance and decrease harmful emissions. Using low-quality fuel that lacks a cleaning agent, or using a lower octane gas than is recommended for your car, can cause your oxygen sensor to fail. And if that happens, you could fail your emissions test.”
My GMC ran well, no indication of engine issues until the check engine light went on, each time one of the 4 O2sensors failed.
Thus I have only used top tier fuels for the past decade, and no oxygen sensor failures.
In light of some of the above blog comments, suggest you check out below comments from a BMW service shop article :
“How can your choice of gas affect your RESULT IN A FAILED EMISSIONS TEST”
“Another part of your car that can be affected by your choice of gasoline is the oxygen sensor. This small but vital component monitors how much oxygen is in your car’s exhaust, helping to increase performance and decrease harmful emissions. Using low-quality fuel that lacks a cleaning agent, or using a lower octane gas than is recommended for your car, can cause your oxygen sensor to fail. And if that happens, you could fail your emissions test.”
My GMC ran well, no indication of engine issues until the check engine light went on, each time one of the 4 O2sensors failed.
Thus I have only used top tier fuels for the past decade, and no oxygen sensor failures.
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