A belated Happy New Year to all . . . . I have an immediate need for help troubleshooting a recent and untimely problem. Low gas mileage. Now, I realize these are old vehicles (mine is an '86) and they drive more like a truck. However, I really am not used to getting only 13 or 14 at most mpg on her. I originally got maybe 17 or 18 mpg and cannot explain this drastic change.  Help!?
       It's been a relatively warm winter here in Portland OR so I don't crank the dashboard heat; I haven't used any auxiliary stuff that would be gas guzzling; nor do I take her heavy duty intense driving. Just putter around town. So - any hints and troubleshooting I can try before taking her into the shop?  I change oil regularly, keep unleaded (not topped off) in the tank and don't have a heavy foot ( on an '86 ??!!!) Thanx in advance - Anna & Blue Mongrel
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" The answer is always "NO" 100% of the time you don't ask".