Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - New plugs/wires/coil packs. Now lower mileage?

Stubby79 · 11-23-2017, 01:02 AM

Wrong/heavier grade of oil put in?
As already suggested, alignment?
Perhaps your CAT decided to get plugged up when it wasn't firing right.

11-23-2017, 01:02 AM	#11 (permalink)
Stubby79 Master EcoModder Join Date: Sep 2012 Location: Victoria, BC Posts: 1,747 Firefly EV - '98 Pontiac Firefly EV 90 day: 107.65 mpg (US) Little Boy Blue - '05 Toyota Echo 90 day: 33.35 mpg (US) BlueZ - '19 Nissan 370Z Sport 90 day: 17.19 mpg (US) Thanks: 75 Thanked 577 Times in 426 Posts	Wrong/heavier grade of oil put in? As already suggested, alignment? Perhaps your CAT decided to get plugged up when it wasn't firing right.