Originally Posted by buschy
whats wrong with costco gas
There are many (including BMW if I'm not mistaken) who say that you should always stick with top tier gas. Top tier gas (Shell, Chevron, etc.) has additives/cleaners that keep gunk from building up in your engine. Cheap gas has been cited for all kinds of problems, the most common being poor performance and knocking/pinging. If you Google "Costco gas quality" or something similar you will see all kinds of stuff.
I use Shell exclusively (because it's all over Houston) and have never had any gas-related issues. I just wish they'd take the damn ethanol out...stupid government regs.
Edit: Sorry for the thread jack. We can all go back to spotting M3s now.
2015 ///M3 | BSM/Full Black/CF | DCT | Silver 19s | Executive | Lighting | DAP | Adaptive Suspension | HK | Enhanced USB | Tint
Past BMWs: 2014 550i, 2013 M3 ZCP, 2012 535i, 2011 E90 335i, 2009 E90 M3, 2008 X5, 2006 330i, 2004 330i