
Originally Posted by
maya07
I have noticed lately that my 2003 v-6 Explorer is getting very poor gas millage.
I was wondering if anyone could shed some light on might be going on.
Here is the situation. I was getting 18+ miles to the gallon and am now
only getting 12. I have been filling up at the same station for the last
4 tanks full, current use is for in-town commuting. No towing and not overloaded.
Have been using 87 octane. Also does using 89 or 92 octane increase your miles
per gallon?
Hmm... two very good questions!
First: "mileage may vary"... this is about the time when some fuel companies reintroduce us to their winter blends. Also, you may be running a slightly richer fuel mixture now for a little longer with the cooler weather (I don't know where you live, but many areas are cooler now)
Secondly:
Most vehicles are designed to run 87. And
most will not benefit from running higher octane fuels, especially in the winter. Higher octane fuels will
not increase horsepower or fuel economy!
I hope this helps clear up some myths.