Originally Posted by PhilD

I've never seen just regular gas labelled as E10 and not premium. But we don't have a lot of ethonal stations here anyway. I don't think it is standard practice either to sell E10 Regular along side pure gas Premium, but I may be wrong.

I do know that in most states in 2004, E10 only accounted for 10% of gas sales, so at least in 2004 all Regular was not E10. Either way in most states it must clearly labelled that you are getting E10 or any blend over 1% for that matter.

Originally Posted by PhilD

I think MTBE is still the most common additive, but not usre. The gov requires that gas be oxygenated during the winter in certain areas to reduce pollution.

Non oxygenated gas will obviously have a slightly better performance, around 2-3% as you stated, but that hardly makes up for the 10% difference in price.

The majority of us are offerred either all grades with something added, or all grades with nothing added, soit is kind of moot point anyway.

Originally Posted by PhilD

I think MTBE is still the most common additive, but not usre.

Originally Posted by tazhog54

I just got back from a trip from Naples Florida to Charottle N.C, to Green Bay ,Wis, to StLouis Missouri to Olk City,Ok and back to Cal. Gas wash From $2.46 to $3.19 Cheapist was in Olk City But most common was $2.79. Over 6500 miles Love my Hummer H2:)