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Many folks have been running 110 and 116 octane on these in the fast GN's and they just keep going with no fouling. On a GM o2 they'd get one run before it was toast. http://www.turbobuick.com/forums/sho...threadid=65765
Re: Lead proof Denso 02 sensor is working... (z0sense)
My Impala SS's O2 sensores (AC DELCO) wont last one trip to the track with any kind of Leaded high octane fuel 108 112 116 only thing that wont kill the sensors is good ole 104 Unleaded.
Re: Lead proof Denso 02 sensor is working... (J-Rod)
They have heated 02s...
For instance.
Denso P/N 234-4018
equivalent to AC DELCO P/N AFS 109
Cost: $26.00
You can get them anywhere. The big issue is going to your local parts store like AutoZone. Give them the PN#, or have them x-reference it to Denso. If they try to cross it to Bosch, tell them no, put in the part number. Once they do they will show up, and they can order it.
Re: Lead proof Denso 02 sensor is working... (J-Rod)
So these better O2 sensor are cheaper than any replacement O2 sensor :confused: I had to buy o2 sensor on 2 different occations and never found anything cheaper than $80 at the autoparts stores.