hi everyone, just bought a 92 vx , 199,000 miles new tires , was told o2 sensor was out, took on a 100 mile trip and only got 29 mpg. Now i have heard many things about the vx and 29 mpg on the highway going 55 mph wasnt what i heard. I have a 93 dx hatch i bought in the spring (for my kids) and it gets 43 mpg on the same trip. so my question is would the o2 sensor play this big of a role? I will be changing air and oil filters tomorrow plugs next what else should i be looking at? thanks for your help, shawn
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