Quote:
Originally Posted by Riceball1
yea I meant to say advance timing. I was just trying to see if that was an option now that gas is so cheap 
Bob |
No worries, Bob.
But, you might consider this: I recently looked at the difference in price per gallon between 87 and 91 (which is what we have here in Tucson) and found it was 22 cents. Now, where I buy gas, I get 87 for $1.499, so the difference in price is roughly 16% to go to the premium stuff. To break even, I'd have to see an increase in MPG of 16% by using the higher priced blend, which for me would be about 1.94MPG (using 15MPG with 87 octane as a baseline).
Here's where my memory is fuzzy though. Back when 87 octane gas was near $4.00 per gallon, I never even looked at the price of 91. If it was still only 22 cents higher, it would only cost a bit over 5% more to use it and at that price spread, I'd only need to improve my MPGs by about 0.75MPG.
So, it's possible that if the cost of gas DOES go up again (and it probably will), we all might do better running hi octane tunes.
It's something to think about.
- Jack