I know this has been mentioned here before a little more than a year ago, but I think it
deserves it own thread so all newcomers can be educated.

I've been only using Top Tier Fuels for years now and it DOES make a difference. Give it a read and a try and see what I mean. www.toptiergas.com

 

Fox,
Ditto that for quality motor oils. You know, so many of these auto gurus insist that we save our money and don't use additives. Well, I still use a fuel additive once a month. Even with quality fuel.
I had an old '85 Chev. S-10 for 20 years/275K miles and used a fuel additive and NEVER had any problems with the single throttle body injector...always clean and perfect spray pattern. That's enough proof for me!
WC

 

I also care where my gas (crude oil) comes from for obvious political reasons. I avoid Persian Gulf and Venezuela (Citgo). Check this link about Persian Gulf Imports by company:

http://www.eia.doe.gov/pub/oil_gas/p...mmary2006.html

Motiva is Shell, don't be fooled by this list.

I try to keep my monies spent to stay as local as possible. My first choice is Conoco/Phillips because of price and location, but I still use fuel additives regularly.