Welcome back to the grind Post your exploits here (will update gas stats later!) OK so here goes: The national average gas price is up 4.8¢ since last week to $2.659 - this time last year it was $2.324 so it's 14.4% (+33.5¢) dearer. Diesel is up 2.7¢ to $2.968. It's now 18.4% (+46.2¢) more expensive than this time last year. Diesel is at a reducing 11.6% premium to regular. E85's average price is up to $2.236 - a year ago it was $2.045 so 9.3% dearer.