bad gas mileage

45

Asked by Apr 07, 2011 at 10:25 AM about the GMC Yukon XL

Question type: Maintenance & Repair

1 Answer

45

I have a 2000 yukon xl. 230000 miles mostly highway. kept up with all oil changes, tune ups etc. used to get about 400 miles to a tank, now getting only 200. oxygen sensors changes, catalytic converter was told no problem this am. Any ideas????

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