camaroeater

Roughly calculated that I will spend $1920 per yearfilling up on 91 oct running 14* timing and $1680 if I run timing at 10*.Is it worth spending the extra 240.00 per year to run advanced timing. I considering backing in down to 10* and just bolting something on to make up for the hp you gain from a timing advance. What your guys take on paying more for gas to run advanced timing?

mjr46

personally I'd get a d/d that is more economical..I drive a 81 jetta diesel ftw

rmodel65

my advanced timing gets more mpg than the stock setting

NYMustang50

Nice wish I had one but to bad diesel is 4.56 a gallon right now by me at the cheap place. My dd is a bronco 5.0 and i get worse in that then my mustang lol like 10-14 mpg lol at 3.75 a gallon

Jfsram

My other toy is a 5.9L Ram so I drive the Mustang to save fuel.

I've advanced my timing up to 16 and with 87 octane I can hear a faint sign of detonation only on the hottest summer day, climbing a hill with a cement wall beside me in too high of a gear for full throttle. Since I've backed it down to 14 deg and run still have only run 87 octane.

Tried a couple tanks of 93 octane and found ZERO difference.