The only thing that i have seen that will ruin an O2 sensor is using race gas. Race gas will kill an O2 sensor because of the lead. My friend ran a mix of 93 pump gas and the 115 race gas and his O2 went out in about 2 months.
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91 LX COUPE, 3.73 gears, 2 1/2 inch full exhaust, 1 5/8 shorty headers, 73 MM C&L MAF, 70 MM MAC TB, LUNATI cam, Windsor jr heads, GT 40 intake with ported lower, world class T5 with PRO 5.0 shifter, Griffin aluminum radiator, Fluid Damper, SSM traction bars, 150 HP shot N2O kit, 190 GPH in tank fuel pump with T-Rex external pump. And more to come.
BEST TIME ON BOTTLE---11.51 @123
BEST TIME ON MOTOR---12.63 @109
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