Your engine is designed to use 91-octane gasoline that is allowed to
contain up to 10% ethanol.
You shouldn't be using 87-octane except when 91 is unavailable.
This is all in your Owner's Manual. You've read that document, no?
Thanks for the info. As I said above, I would have to check my owner's
manual this weekend. Since I already had a tank full of it, I wanted to
see if anyone had experience with it.
And yes, I read the owner's manual from cover to cover when I got the
car over three years ago. Back then, there were no placards indicating
ethanol was added to the fuel any where I was buying fuel, so I don't
remember what it said.
Now if I could just remember how to get the radio into clock-setting
mode every time we go on/off DST without looking it up in the manual,
I'd be happy:-)
Texas. I don't know whether Costco's supplier has been putting ethanol
in their gas for years and Costco just didn't tell us, or their supplier
started using it and they posted it, or Costco changed suppliers and the
new supplier does and they posted it, or ????
10% doesn't sound like it should hurt my fuel economy much. It's hard to
tell since it's finally starting to cool off a bit here and I don't have
to use my A/C when I drive to work at 06:30 everyday. Driving with the
A/C on usually costs me 2 - 3 MPG on my mostly highway driving.
I think that federal regulations effectively require ethanol now that
MTBE is not being used. So I don't think you're going to find gas
without ethanol by shopping around.
Since I remember the fuss about MTBE getting into groundwater from
several years ago, I would think pretty much everybody has been using
10% ethanol for a while. But maybe Texas is just getting around to it.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.