Thread: COSTCO gas
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      02-06-2013, 07:10 PM   #5
JJunkins
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Drives: 2014 S4
Join Date: Nov 2012
Location: Atlanta, GA

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I was advised against Costco gas by a BMW Technician. Due to the amount of detergents (either too much or too little) in the fuel and with usage over time, it can clog the injectors. For the best gas, visit http://www.toptiergas.com/retailers.html With that said, I use Shell only; same station, same pump, every time.

Also, the manual recommends BP fuels. Check your Supplementary Owner's Manual, page 59.

Last edited by JJunkins; 02-06-2013 at 07:17 PM.
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