Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Spark plug test success! (A-B-A-B = 2% gain with lower heat range plugs)

ECONORAM · 08-07-2013, 11:47 PM

Very interesting thread. I am curious because the wife's 08 Avenger will knock on 87 octane; I've been running 89 for a couple years now to avoid that. It's a 2.4L that runs 10.5 CR. Never thought of running a range colder plug.

08-07-2013, 11:47 PM	#23 (permalink)
ECONORAM halos.com Join Date: Oct 2009 Location: Oklahoma City, OK Posts: 528 ECONORAM - '07 Dodge RAM 1500 QC SLT flex-fuel 90 day: 18.16 mpg (US) the Avenger - '08 Dodge Avenger SXT 90 day: 27.06 mpg (US) Thanks: 385 Thanked 94 Times in 80 Posts	Very interesting thread. I am curious because the wife's 08 Avenger will knock on 87 octane; I've been running 89 for a couple years now to avoid that. It's a 2.4L that runs 10.5 CR. Never thought of running a range colder plug. __________________