Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 2007 Ford Focus wagon, 5-speed

Focus-Ak · 03-19-2015, 01:38 PM

Tom is my tuner.

[Edit]: I have always run 87 octane in this car. Tom detected some knock (less than I could hear) from my datalogs, and has reduced the spark advance to compensate. He says that if I go to a higher octane he can change my tune to give better MPG than I am getting now, and that this will more than make up for the difference in pump price.

03-19-2015, 01:38 PM	#66 (permalink)
Focus-Ak EcoModding Apprentice Join Date: Sep 2014 Location: Alaska Posts: 100 n/a - '05 Ford Focus ZX3 Thanks: 5 Thanked 65 Times in 27 Posts	Tom is my tuner. [Edit]: I have always run 87 octane in this car. Tom detected some knock (less than I could hear) from my datalogs, and has reduced the spark advance to compensate. He says that if I go to a higher octane he can change my tune to give better MPG than I am getting now, and that this will more than make up for the difference in pump price. Last edited by Focus-Ak; 03-19-2015 at 02:35 PM.. Reason: An addition.