That is an ambiguous question with too many variables. Normally what brand you use is a matter of personal preference, cost and what is available in your area. Obviously you failed to review my link which has the recommnded top tier gasolines and from that you can assume what brand(s) not to use. See the second link below.
I use Chevron brand only in my L67 GTP and Regal GS.
http://www.toptiergas.com/retailers.html
Quote:
TOP TIER Gasoline Retailers:
QuikTrip
Chevron
Texaco
MFA Oil Co.
Conoco
Phillips 66
76
Entec Stations
Shell
The Somerset Refinery, Inc.
Kwik Trip / Kwik Star
Aloha Petroleum
Tri-Par Oil Co.
Turkey Hill Minit Markets
Mileage Stations
Chevron Canada
Shell Canada
Petro-Canada
Sunoco Canada
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