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idkthissucks1234 · 11-21-2015, 09:09 PM

To: Legendary Mystery Buick 3.8, 27 mpg city (taxi), 44 mpg hwy

I have a 1999 3.8 bonneville same as buick looks different... I snipped the o2 sensor on and I get 35mpg sometimes when before it was 17-22. Can this cause problems in the engine if I'm somehow starving it of fuel? Cumberland farms gas gets better gas mileage for some reason too but I don't know why.

11-21-2015, 09:09 PM	#33 (permalink)
idkthissucks1234 EcoModding Lurker Join Date: Nov 2015 Location: nowhere Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts	To: Legendary Mystery Buick 3.8, 27 mpg city (taxi), 44 mpg hwy To: Legendary Mystery Buick 3.8, 27 mpg city (taxi), 44 mpg hwy I have a 1999 3.8 bonneville same as buick looks different... I snipped the o2 sensor on and I get 35mpg sometimes when before it was 17-22. Can this cause problems in the engine if I'm somehow starving it of fuel? Cumberland farms gas gets better gas mileage for some reason too but I don't know why.