Out of Control
Join Date: May 2008
location: Dallas Texas
Thanked 481 Times in 389 Posts
Save your money and run 87 octane fuel as the owner's manual recommends. All modern cars have a knock detector and will adjust the timing to eliminate preignition in cars that require 91 octane while running 87 octane without damage. Running 91-93 octane fuel is just pouring money out the tailpipe and just enriches the oil companies profits. You will see no difference in performance.
2013 Accord Coupe EX-L San Marino Red
2015 CR-V EX Urban Titanium Metallic
2007 Fit Sport Silver 65,000 miles and going strong.
Previous Honda: 2000 Accord Coupe, 1994 Accord Wagon Red, 1988 Prelude White 5 speed manual, 1981 Accord 4 Door Ivory 5 speed manual
Previous Cars before Honda: 73 Mazda RX2 manual, 63 VW Bug manual, 63 Alfa Romeo 2600 Spyder manual, 70 Toyota Crown manual, 59 Vauxhall Victor manual (worst car ever produced, a pre Yugo, Yugo)